138166830576 has 60 divisors (see below), whose sum is σ = 386779072680. Its totient is φ = 46043241600.

The previous prime is 138166830563. The next prime is 138166830587. The reversal of 138166830576 is 675038661831.

138166830576 is a `hidden beast` number, since 1 + 3 + 8 + 1 + 6 + 68 + 3 + 0 + 576 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417226 + ... + 671126.

It is an arithmetic number, because the mean of its divisors is an integer number (6446317878).

Almost surely, 2^138166830576 is an apocalyptic number.

138166830576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138166830576 is an abundant number, since it is smaller than the sum of its proper divisors (248612242104).

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

138166830576 is a wasteful number, since it uses less digits than its factorization.

138166830576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257694 (or 257685 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 138166830576 in words is "one hundred thirty-eight billion, one hundred sixty-six million, eight hundred thirty thousand, five hundred seventy-six".