655915332996 has 243 divisors, whose sum is σ = 2121189825573. Its totient is φ = 170270432640.

The previous prime is 655915332967. The next prime is 655915333009. The reversal of 655915332996 is 699233519556.

The square root of 655915332996 is 809886.

It is a perfect power (a square), and thus also a powerful number.

655915332996 is a `hidden beast` number, since 6 + 5 + 5 + 9 + 1 + 533 + 2 + 9 + 96 = 666.

655915332996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 18574964100 + 637340368896 = 136290^2 + 798336^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 374166456 + ... + 374168208.

Almost surely, 2^655915332996 is an apocalyptic number.

655915332996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

655915332996 is the 809886-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655915332996

655915332996 is an abundant number, since it is smaller than the sum of its proper divisors (1465274492577).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655915332996 is a wasteful number, since it uses less digits than its factorization.

655915332996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552 (or 1776 counting only the distinct ones).

The product of its digits is 59049000, while the sum is 63.

The spelling of 655915332996 in words is "six hundred fifty-five billion, nine hundred fifteen million, three hundred thirty-two thousand, nine hundred ninety-six".