18130552717968 has 60 divisors (see below), whose sum is σ = 50741639839228. Its totient is φ = 6043365884160.

The previous prime is 18130552717961. The next prime is 18130552717973. The reversal of 18130552717968 is 86971725503181.

It is a happy number.

18130552717968 is a `hidden beast` number, since 1 + 8 + 1 + 3 + 0 + 5 + 527 + 17 + 96 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 535279530384 + 17595273187584 = 731628^2 + 4194672^2 .

It is not an unprimeable number, because it can be changed into a prime (18130552717961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4251498 + ... + 7371318.

Almost surely, 2^{18130552717968} is an apocalyptic number.

18130552717968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18130552717968 is an abundant number, since it is smaller than the sum of its proper divisors (32611087121260).

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

18130552717968 is a wasteful number, since it uses less digits than its factorization.

18130552717968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160192 (or 3160183 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 63.

The spelling of 18130552717968 in words is "eighteen trillion, one hundred thirty billion, five hundred fifty-two million, seven hundred seventeen thousand, nine hundred sixty-eight".