18003371136 has 64 divisors (see below), whose sum is σ = 47835878400. Its totient is φ = 5999313920.

The previous prime is 18003371119. The next prime is 18003371137. The reversal of 18003371136 is 63117330081.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 18003371097 and 18003371106.

It is not an unprimeable number, because it can be changed into a prime (18003371137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034241 + ... + 2043071.

It is an arithmetic number, because the mean of its divisors is an integer number (747435600).

Almost surely, 2^18003371136 is an apocalyptic number.

18003371136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18003371136 is an abundant number, since it is smaller than the sum of its proper divisors (29832507264).

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

18003371136 is an equidigital number, since it uses as much as digits as its factorization.

18003371136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157 (or 14145 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 18003371136 in words is "eighteen billion, three million, three hundred seventy-one thousand, one hundred thirty-six".