18118133824 has 56 divisors (see below), whose sum is σ = 41389401600. Its totient is φ = 7708210176.

The previous prime is 18118133801. The next prime is 18118133833. The reversal of 18118133824 is 42833181181.

It is a tau number, because it is divible by the number of its divisors (56).

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, 86224 + ... + 208975.

Almost surely, 2^18118133824 is an apocalyptic number.

18118133824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18118133824 is an abundant number, since it is smaller than the sum of its proper divisors (23271267776).

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

18118133824 is a wasteful number, since it uses less digits than its factorization.

18118133824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295355 (or 295345 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The spelling of 18118133824 in words is "eighteen billion, one hundred eighteen million, one hundred thirty-three thousand, eight hundred twenty-four".