56156561232 has 20 divisors (see below), whose sum is σ = 145071116640. Its totient is φ = 18718853728.

The previous prime is 56156561207. The next prime is 56156561233. The reversal of 56156561232 is 23216565165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56156561233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584964132 + ... + 584964227.

It is an arithmetic number, because the mean of its divisors is an integer number (7253555832).

Almost surely, 2^56156561232 is an apocalyptic number.

It is an amenable number.

56156561232 is an abundant number, since it is smaller than the sum of its proper divisors (88914555408).

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

56156561232 is a wasteful number, since it uses less digits than its factorization.

56156561232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169928370 (or 1169928364 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The spelling of 56156561232 in words is "fifty-six billion, one hundred fifty-six million, five hundred sixty-one thousand, two hundred thirty-two".