56701551620 has 24 divisors (see below), whose sum is σ = 136083724224. Its totient is φ = 19440531936.

The previous prime is 56701551587. The next prime is 56701551637. The reversal of 56701551620 is 2615510765.

It is a super-2 number, since 2×56701551620² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202505402 + ... + 202505681.

It is an arithmetic number, because the mean of its divisors is an integer number (5670155176).

Almost surely, 2^56701551620 is an apocalyptic number.

It is an amenable number.

56701551620 is an abundant number, since it is smaller than the sum of its proper divisors (79382172604).

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

56701551620 is a wasteful number, since it uses less digits than its factorization.

56701551620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405011099 (or 405011097 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 56701551620 in words is "fifty-six billion, seven hundred one million, five hundred fifty-one thousand, six hundred twenty".