159178870522 has 24 divisors (see below), whose sum is σ = 282458538720. Its totient is φ = 67063250520.

The previous prime is 159178870489. The next prime is 159178870547. The reversal of 159178870522 is 225078871951.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13759254 + ... + 13770817.

It is an arithmetic number, because the mean of its divisors is an integer number (11769105780).

Almost surely, 2^159178870522 is an apocalyptic number.

159178870522 is a deficient number, since it is larger than the sum of its proper divisors (123279668198).

159178870522 is a wasteful number, since it uses less digits than its factorization.

159178870522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27530146 (or 27530139 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 55.

The spelling of 159178870522 in words is "one hundred fifty-nine billion, one hundred seventy-eight million, eight hundred seventy thousand, five hundred twenty-two".