18013516460 has 48 divisors (see below), whose sum is σ = 40087323360. Its totient is φ = 6787253760.

The previous prime is 18013516459. The next prime is 18013516483. The reversal of 18013516460 is 6461531081.

It is a self number, because there is not a number n which added to its sum of digits gives 18013516460.

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, 354974 + ... + 402533.

It is an arithmetic number, because the mean of its divisors is an integer number (835152570).

Almost surely, 2^18013516460 is an apocalyptic number.

18013516460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18013516460 is an abundant number, since it is smaller than the sum of its proper divisors (22073806900).

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

18013516460 is a wasteful number, since it uses less digits than its factorization.

18013516460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757586 (or 757584 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 18013516460 in words is "eighteen billion, thirteen million, five hundred sixteen thousand, four hundred sixty".