56655661160161 has 4 divisors (see below), whose sum is σ = 64749327040192. Its totient is φ = 48561995280132.

The previous prime is 56655661160141. The next prime is 56655661160177. The reversal of 56655661160161 is 16106116655665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56655661160161 - 2¹¹ = 56655661158113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56655661160101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4046832940005 + ... + 4046832940018.

It is an arithmetic number, because the mean of its divisors is an integer number (16187331760048).

Almost surely, 2^{56655661160161} is an apocalyptic number.

It is an amenable number.

56655661160161 is a deficient number, since it is larger than the sum of its proper divisors (8093665880031).

56655661160161 is an equidigital number, since it uses as much as digits as its factorization.

56655661160161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8093665880030.

The product of its (nonzero) digits is 5832000, while the sum is 55.

The spelling of 56655661160161 in words is "fifty-six trillion, six hundred fifty-five billion, six hundred sixty-one million, one hundred sixty thousand, one hundred sixty-one".