56156369305 has 16 divisors (see below), whose sum is σ = 67688913600. Its totient is φ = 44724424000.

The previous prime is 56156369281. The next prime is 56156369327. The reversal of 56156369305 is 50396365165.

It is not a de Polignac number, because 56156369305 - 2¹⁷ = 56156238233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888106 + ... + 2907484.

It is an arithmetic number, because the mean of its divisors is an integer number (4230557100).

Almost surely, 2^56156369305 is an apocalyptic number.

It is an amenable number.

56156369305 is a deficient number, since it is larger than the sum of its proper divisors (11532544295).

56156369305 is a wasteful number, since it uses less digits than its factorization.

56156369305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21944.

The product of its (nonzero) digits is 2187000, while the sum is 49.

The spelling of 56156369305 in words is "fifty-six billion, one hundred fifty-six million, three hundred sixty-nine thousand, three hundred five".