56156612211 has 24 divisors (see below), whose sum is σ = 97582085120. Its totient is φ = 30400571376.

The previous prime is 56156612207. The next prime is 56156612221. The reversal of 56156612211 is 11221665165.

56156612211 is a `hidden beast` number, since 5 + 6 + 15 + 6 + 612 + 21 + 1 = 666.

It is not a de Polignac number, because 56156612211 - 2² = 56156612207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56156612201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23456035 + ... + 23458428.

Almost surely, 2^56156612211 is an apocalyptic number.

56156612211 is a deficient number, since it is larger than the sum of its proper divisors (41425472909).

56156612211 is a wasteful number, since it uses less digits than its factorization.

56156612211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46914495 (or 46914492 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The spelling of 56156612211 in words is "fifty-six billion, one hundred fifty-six million, six hundred twelve thousand, two hundred eleven".