56771256156 has 24 divisors (see below), whose sum is σ = 132489880320. Its totient is φ = 18920378352.

The previous prime is 56771256137. The next prime is 56771256163. The reversal of 56771256156 is 65165217765.

It is a junction number, because it is equal to n+sod(n) for n = 56771256099 and 56771256108.

It is a congruent number.

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, 351126 + ... + 486653.

It is an arithmetic number, because the mean of its divisors is an integer number (5520411680).

Almost surely, 2^56771256156 is an apocalyptic number.

It is an amenable number.

56771256156 is an abundant number, since it is smaller than the sum of its proper divisors (75718624164).

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

56771256156 is a wasteful number, since it uses less digits than its factorization.

56771256156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843433 (or 843431 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 51.

The spelling of 56771256156 in words is "fifty-six billion, seven hundred seventy-one million, two hundred fifty-six thousand, one hundred fifty-six".