138703602556 has 12 divisors (see below), whose sum is σ = 242742622360. Its totient is φ = 69348567600.

The previous prime is 138703602511. The next prime is 138703602581. The reversal of 138703602556 is 655206307831.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710595 + ... + 884506.

Almost surely, 2^138703602556 is an apocalyptic number.

It is an amenable number.

138703602556 is a deficient number, since it is larger than the sum of its proper divisors (104039019804).

138703602556 is a wasteful number, since it uses less digits than its factorization.

138703602556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616844 (or 1616842 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 138703602556 in words is "one hundred thirty-eight billion, seven hundred three million, six hundred two thousand, five hundred fifty-six".