56156106555 has 24 divisors (see below), whose sum is σ = 98300994480. Its totient is φ = 29653387200.

The previous prime is 56156106493. The next prime is 56156106569. The reversal of 56156106555 is 55560165165.

It is not a de Polignac number, because 56156106555 - 2⁸ = 56156106299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56156106555.

It is an unprimeable number.

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, 6173245 + ... + 6182334.

It is an arithmetic number, because the mean of its divisors is an integer number (4095874770).

Almost surely, 2^56156106555 is an apocalyptic number.

56156106555 is a deficient number, since it is larger than the sum of its proper divisors (42144887925).

56156106555 is a wasteful number, since it uses less digits than its factorization.

56156106555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12355691 (or 12355688 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 56156106555 in words is "fifty-six billion, one hundred fifty-six million, one hundred six thousand, five hundred fifty-five".