18559004160 has 160 divisors (see below), whose sum is σ = 59547438720. Its totient is φ = 4931002368.

The previous prime is 18559004147. The next prime is 18559004183. The reversal of 18559004160 is 6140095581.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

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, 2169171 + ... + 2177709.

It is an arithmetic number, because the mean of its divisors is an integer number (372171492).

Almost surely, 2^18559004160 is an apocalyptic number.

18559004160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18559004160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29773719360).

18559004160 is an abundant number, since it is smaller than the sum of its proper divisors (40988434560).

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

18559004160 is an equidigital number, since it uses as much as digits as its factorization.

18559004160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8848 (or 8832 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 18559004160 in words is "eighteen billion, five hundred fifty-nine million, four thousand, one hundred sixty".