18559004120 has 32 divisors (see below), whose sum is σ = 41772337200. Its totient is φ = 7421010048.

The previous prime is 18559004063. The next prime is 18559004147. The reversal of 18559004120 is 2140095581.

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, 37151 + ... + 196209.

Almost surely, 2^18559004120 is an apocalyptic number.

18559004120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18559004120 is an abundant number, since it is smaller than the sum of its proper divisors (23213333080).

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

18559004120 is a wasteful number, since it uses less digits than its factorization.

18559004120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161987 (or 161983 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 18559004120 in words is "eighteen billion, five hundred fifty-nine million, four thousand, one hundred twenty".