155032804656 has 80 divisors (see below), whose sum is σ = 445048583520. Its totient is φ = 51672142080.

The previous prime is 155032804639. The next prime is 155032804669. The reversal of 155032804656 is 656408230551.

155032804656 is a `hidden beast` number, since 1 + 5 + 503 + 2 + 80 + 4 + 65 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7875466 + ... + 7895126.

It is an arithmetic number, because the mean of its divisors is an integer number (5563107294).

Almost surely, 2^155032804656 is an apocalyptic number.

155032804656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155032804656 is an abundant number, since it is smaller than the sum of its proper divisors (290015778864).

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

155032804656 is a wasteful number, since it uses less digits than its factorization.

155032804656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37931 (or 37919 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 155032804656 in words is "one hundred fifty-five billion, thirty-two million, eight hundred four thousand, six hundred fifty-six".