256616303164 has 24 divisors (see below), whose sum is σ = 483660706928. Its totient is φ = 118429067520.

The previous prime is 256616303147. The next prime is 256616303191. The reversal of 256616303164 is 461303616652.

It is a self number, because there is not a number n which added to its sum of digits gives 256616303164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505879 + ... + 877009.

Almost surely, 2^256616303164 is an apocalyptic number.

It is an amenable number.

256616303164 is a deficient number, since it is larger than the sum of its proper divisors (227044403764).

256616303164 is a wasteful number, since it uses less digits than its factorization.

256616303164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384445 (or 384443 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 256616303164 in words is "two hundred fifty-six billion, six hundred sixteen million, three hundred three thousand, one hundred sixty-four".