138659585112 has 48 divisors (see below), whose sum is σ = 375553751040. Its totient is φ = 46217723328.

The previous prime is 138659585107. The next prime is 138659585131. The reversal of 138659585112 is 211585956831.

138659585112 is a `hidden beast` number, since 1 + 3 + 8 + 6 + 59 + 585 + 1 + 1 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2629033 + ... + 2681255.

It is an arithmetic number, because the mean of its divisors is an integer number (7824036480).

Almost surely, 2^138659585112 is an apocalyptic number.

138659585112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138659585112 is an abundant number, since it is smaller than the sum of its proper divisors (236894165928).

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

138659585112 is a wasteful number, since it uses less digits than its factorization.

138659585112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89112 (or 89105 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 54.

The spelling of 138659585112 in words is "one hundred thirty-eight billion, six hundred fifty-nine million, five hundred eighty-five thousand, one hundred twelve".