What kind of a number is 64?

Sixty-four is several kinds of number.

It is an even number

It is a two-digit number

It is a square number - the second power of 8 -> 8 * 8 = 64

It is a cubic number - the third power of 4 -> 4 * 4 * 4 = 64

It is a 6th power number - the sixth power of 2 -> 2 * 2 * 2 * 2 * 2 * 2 = 64

It is a superperfect number