18363540000816 has 30 divisors (see below), whose sum is σ = 51392407086020. Its totient is φ = 6121180000224.

The previous prime is 18363540000809. The next prime is 18363540000913. The reversal of 18363540000816 is 61800004536381.

18363540000816 is a `hidden beast` number, since 1 + 8 + 3 + 635 + 4 + 0 + 0 + 0 + 0 + 8 + 1 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63762291526 + ... + 63762291813.

Almost surely, 2^{18363540000816} is an apocalyptic number.

18363540000816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18363540000816 is an abundant number, since it is smaller than the sum of its proper divisors (33028867085204).

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

18363540000816 is a wasteful number, since it uses less digits than its factorization.

18363540000816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127524583353 (or 127524583344 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 18363540000816 in words is "eighteen trillion, three hundred sixty-three billion, five hundred forty million, eight hundred sixteen", and thus it is an aban number.