165556550152522 has 32 divisors (see below), whose sum is σ = 249957335347200. Its totient is φ = 82238724414000.

The previous prime is 165556550152471. The next prime is 165556550152573. The reversal of 165556550152522 is 225251055655561.

It is an interprime number because it is at equal distance from previous prime (165556550152471) and next prime (165556550152573).

It is a super-2 number, since 2×165556550152522² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1895866353 + ... + 1895953675.

It is an arithmetic number, because the mean of its divisors is an integer number (7811166729600).

Almost surely, 2^{165556550152522} is an apocalyptic number.

165556550152522 is a deficient number, since it is larger than the sum of its proper divisors (84400785194678).

165556550152522 is a wasteful number, since it uses less digits than its factorization.

165556550152522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94618.

The product of its (nonzero) digits is 22500000, while the sum is 55.

The spelling of 165556550152522 in words is "one hundred sixty-five trillion, five hundred fifty-six billion, five hundred fifty million, one hundred fifty-two thousand, five hundred twenty-two".