For the summer block party, Elise is bringing cups and a large beverage dispenser filled with iced tea. The dispenser is shaped like a rectangular prism, with a length of 16.5inches, a width of 10inches, and a height of 26inches. The cups Elise brought are cylindrical, with a diameter of 2.5inches and a height of 4.5 inches. What is the maximum number of cups that could be completely filled using the beverage dispenser?