18150015156 has 48 divisors (see below), whose sum is σ = 52123123584. Its totient is φ = 4786816896.

The previous prime is 18150015151. The next prime is 18150015161. The reversal of 18150015156 is 65151005181.

It is an interprime number because it is at equal distance from previous prime (18150015151) and next prime (18150015161).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18150015151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8309355 + ... + 8311538.

It is an arithmetic number, because the mean of its divisors is an integer number (1085898408).

Almost surely, 2^18150015156 is an apocalyptic number.

It is an amenable number.

18150015156 is an abundant number, since it is smaller than the sum of its proper divisors (33973108428).

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

18150015156 is a wasteful number, since it uses less digits than its factorization.

18150015156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16620920 (or 16620918 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 33.

The spelling of 18150015156 in words is "eighteen billion, one hundred fifty million, fifteen thousand, one hundred fifty-six".