138966018180 has 96 divisors (see below), whose sum is σ = 438170923008. Its totient is φ = 32601993600.

The previous prime is 138966018151. The next prime is 138966018241. The reversal of 138966018180 is 81810669831.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3375582 + ... + 3416501.

It is an arithmetic number, because the mean of its divisors is an integer number (4564280448).

Almost surely, 2^138966018180 is an apocalyptic number.

138966018180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138966018180 is an abundant number, since it is smaller than the sum of its proper divisors (299204904828).

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

138966018180 is a wasteful number, since it uses less digits than its factorization.

138966018180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792137 (or 6792135 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 138966018180 in words is "one hundred thirty-eight billion, nine hundred sixty-six million, eighteen thousand, one hundred eighty".