18515076132 has 24 divisors (see below), whose sum is σ = 49373536576. Its totient is φ = 5290021728.

The previous prime is 18515076113. The next prime is 18515076133. The reversal of 18515076132 is 23167051581.

It is not an unprimeable number, because it can be changed into a prime (18515076133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110208703 + ... + 110208870.

Almost surely, 2^18515076132 is an apocalyptic number.

18515076132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18515076132 is an abundant number, since it is smaller than the sum of its proper divisors (30858460444).

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

18515076132 is a wasteful number, since it uses less digits than its factorization.

18515076132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220417587 (or 220417585 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 18515076132 in words is "eighteen billion, five hundred fifteen million, seventy-six thousand, one hundred thirty-two".