56656651755 has 64 divisors (see below), whose sum is σ = 105708395520. Its totient is φ = 25634611200.

The previous prime is 56656651739. The next prime is 56656651759. The reversal of 56656651755 is 55715665665.

It is a happy number.

It is not a de Polignac number, because 56656651755 - 2⁴ = 56656651739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56656651695 and 56656651704.

It is not an unprimeable number, because it can be changed into a prime (56656651759) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26470 + ... + 337659.

It is an arithmetic number, because the mean of its divisors is an integer number (1651693680).

Almost surely, 2^56656651755 is an apocalyptic number.

56656651755 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56656651755 is a deficient number, since it is larger than the sum of its proper divisors (49051743765).

56656651755 is a wasteful number, since it uses less digits than its factorization.

56656651755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364212.

The product of its digits is 28350000, while the sum is 57.

The spelling of 56656651755 in words is "fifty-six billion, six hundred fifty-six million, six hundred fifty-one thousand, seven hundred fifty-five".