165050604536555 has 64 divisors (see below), whose sum is σ = 201086240256000. Its totient is φ = 130043475394560.

The previous prime is 165050604536527. The next prime is 165050604536651. The reversal of 165050604536555 is 555635406050561.

It is not a de Polignac number, because 165050604536555 - 2⁸ = 165050604536299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165050604536555.

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, 77018479814 + ... + 77018481956.

It is an arithmetic number, because the mean of its divisors is an integer number (3141972504000).

Almost surely, 2^{165050604536555} is an apocalyptic number.

165050604536555 is a deficient number, since it is larger than the sum of its proper divisors (36035635719445).

165050604536555 is a wasteful number, since it uses less digits than its factorization.

165050604536555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004.

The product of its (nonzero) digits is 40500000, while the sum is 56.

The spelling of 165050604536555 in words is "one hundred sixty-five trillion, fifty billion, six hundred four million, five hundred thirty-six thousand, five hundred fifty-five".