139657707162520 has 32 divisors (see below), whose sum is σ = 314233553808720. Its totient is φ = 55862422830720.

The previous prime is 139657707162409. The next prime is 139657707162521. The reversal of 139657707162520 is 25261707756931.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139657707162521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17191227 + ... + 23976106.

Almost surely, 2^{139657707162520} is an apocalyptic number.

139657707162520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139657707162520 is an abundant number, since it is smaller than the sum of its proper divisors (174575846646200).

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

139657707162520 is a wasteful number, since it uses less digits than its factorization.

139657707162520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41252155 (or 41252151 counting only the distinct ones).

The product of its (nonzero) digits is 33339600, while the sum is 61.

The spelling of 139657707162520 in words is "one hundred thirty-nine trillion, six hundred fifty-seven billion, seven hundred seven million, one hundred sixty-two thousand, five hundred twenty".