656105160165 has 64 divisors (see below), whose sum is σ = 1360023705600. Its totient is φ = 262290265344.

The previous prime is 656105160149. The next prime is 656105160187. The reversal of 656105160165 is 561061501656.

It is not a de Polignac number, because 656105160165 - 2⁴ = 656105160149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12623095 + ... + 12674964.

It is an arithmetic number, because the mean of its divisors is an integer number (21250370400).

Almost surely, 2^656105160165 is an apocalyptic number.

656105160165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

656105160165 is an abundant number, since it is smaller than the sum of its proper divisors (703918545435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656105160165 is a wasteful number, since it uses less digits than its factorization.

656105160165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25298106.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 656105160165 in words is "six hundred fifty-six billion, one hundred five million, one hundred sixty thousand, one hundred sixty-five".