56716017155 has 8 divisors (see below), whose sum is σ = 77781966432. Its totient is φ = 38890983168.

The previous prime is 56716017139. The next prime is 56716017167. The reversal of 56716017155 is 55171061765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56716017155 - 2⁴ = 56716017139 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 810228782 + ... + 810228851.

It is an arithmetic number, because the mean of its divisors is an integer number (9722745804).

Almost surely, 2^56716017155 is an apocalyptic number.

56716017155 is a deficient number, since it is larger than the sum of its proper divisors (21065949277).

56716017155 is a wasteful number, since it uses less digits than its factorization.

56716017155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620457645.

The product of its (nonzero) digits is 220500, while the sum is 44.

The spelling of 56716017155 in words is "fifty-six billion, seven hundred sixteen million, seventeen thousand, one hundred fifty-five".