Six hundred sixty
660 is an even number.
660 is a Harshad number, which means it is divisible by the sum of its digits (6 + 6 + 0 = 12, and 660 is divisible by 12).
In binary, 660 is represented as 1010010100.
In hex, 660 is represented as 294.
Prime factorization of 660: 22 * 3 * 5 * 11.
Factors of 660 are: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660.