At the Pizzeria di Sicily, a customer has a choice of four different crusts: regular, whole wheat, gluten-free, or cauliflower; seven different sauces: red sauce, Alfredo sauce, pesto, olive oil, BBQ sauce, creamy garlic sauce, or chili sauce; nine cheeses: parmesan, cream cheese, mozzarella, gorgonzola, goat cheese, fontina, paneer, dairy-free cheeze, or brie; seven meat toppings: chorizo, pepperoni, prosciutto, brisket, anchovies, andouille sausage, or tuna; sixteen veggie toppings: rhubarb, pineapple, red grapes, peaches, sun-dried tomatoes, garlic, strawberries, arugula, carrot, cherry tomatoes, mushrooms, fresh basil, eggplant, kale, sauerkraut, or pistachios; and five special toppings: balsamic vinegar, fried egg, whipped cream, peanut butter, or chocolate sauce. On the menu is an option to build-your-own "Papa's Special Pie," where a customer has the choice of one crust, one sauce, two cheeses, three meats, three veggies, and one or no special item. For example, a customer could order a Papa's Special Pie with cauliflower crust, BBQ sauce, parmesan and brie, andouille sausage, anchovies, brisket, mushrooms, sauerkraut, arugula, and chocolate sauce. How many different "Papa's Special Pies" are possible?

At the Pizzeria di Sicily, a customer has a choice of

• four different crusts: regular, whole wheat, gluten-free, or cauliflower;
• seven different sauces: red sauce, Alfredo sauce, pesto, olive oil, BBQ sauce, creamy garlic sauce, or chili sauce;
• nine cheeses: parmesan, cream cheese, mozzarella, gorgonzola, goat cheese, fontina, paneer, dairy-free cheeze, or brie;
• seven meat toppings: chorizo, pepperoni, prosciutto, brisket, anchovies, andouille sausage, or tuna;
• sixteen veggie toppings: rhubarb, pineapple, red grapes, peaches, sun-dried tomatoes, garlic, strawberries, arugula, carrot, cherry tomatoes, mushrooms, fresh basil, eggplant, kale, sauerkraut, or pistachios;
  and
• five special toppings: balsamic vinegar, fried egg, whipped cream, peanut butter, or chocolate sauce.

On the menu is an option to build-your-own "Papa's Special Pie," where a customer has the choice of one crust, one sauce, two cheeses, three meats, three veggies, and one or no special item.

For example, a customer could order a Papa's Special Pie with cauliflower crust, BBQ sauce, parmesan and brie, andouille sausage, anchovies, brisket, mushrooms, sauerkraut, arugula, and chocolate sauce.

How many different "Papa's Special Pies" are possible?