56656511156 has 96 divisors (see below), whose sum is σ = 119751851520. Its totient is φ = 22929984000.

The previous prime is 56656511111. The next prime is 56656511173. The reversal of 56656511156 is 65111565665.

56656511156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56656511156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27382490 + ... + 27384558.

It is an arithmetic number, because the mean of its divisors is an integer number (1247415120).

Almost surely, 2^56656511156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56656511156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59875925760).

56656511156 is an abundant number, since it is smaller than the sum of its proper divisors (63095340364).

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

56656511156 is a wasteful number, since it uses less digits than its factorization.

56656511156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625 (or 2623 counting only the distinct ones).

The product of its digits is 810000, while the sum is 47.

The spelling of 56656511156 in words is "fifty-six billion, six hundred fifty-six million, five hundred eleven thousand, one hundred fifty-six".