138157000816 has 20 divisors (see below), whose sum is σ = 267720141600. Its totient is φ = 69067932032.

The previous prime is 138157000811. The next prime is 138157000831. The reversal of 138157000816 is 618000751831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138157000811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 552136 + ... + 762343.

It is an arithmetic number, because the mean of its divisors is an integer number (13386007080).

Almost surely, 2^138157000816 is an apocalyptic number.

138157000816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138157000816 is a deficient number, since it is larger than the sum of its proper divisors (129563140784).

138157000816 is a wasteful number, since it uses less digits than its factorization.

138157000816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321056 (or 1321050 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 138157000816 in words is "one hundred thirty-eight billion, one hundred fifty-seven million, eight hundred sixteen", and thus it is an aban number.