2056256155660 has 36 divisors (see below), whose sum is σ = 5023140039792. Its totient is φ = 705002110176.

The previous prime is 2056256155589. The next prime is 2056256155697. The reversal of 2056256155660 is 665516526502.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1049109304 + ... + 1049111263.

It is an arithmetic number, because the mean of its divisors is an integer number (139531667772).

Almost surely, 2^{2056256155660} is an apocalyptic number.

2056256155660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2056256155660 is an abundant number, since it is smaller than the sum of its proper divisors (2966883884132).

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

2056256155660 is a wasteful number, since it uses less digits than its factorization.

2056256155660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098220590 (or 2098220581 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 2056256155660 in words is "two trillion, fifty-six billion, two hundred fifty-six million, one hundred fifty-five thousand, six hundred sixty".