138516697168 has 20 divisors (see below), whose sum is σ = 268384072320. Its totient is φ = 69256291424.

The previous prime is 138516697141. The next prime is 138516697169. The reversal of 138516697168 is 861796615831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138516697169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528771 + ... + 746077.

It is an arithmetic number, because the mean of its divisors is an integer number (13419203616).

Almost surely, 2^138516697168 is an apocalyptic number.

It is an amenable number.

138516697168 is a deficient number, since it is larger than the sum of its proper divisors (129867375152).

138516697168 is a wasteful number, since it uses less digits than its factorization.

138516697168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257154 (or 257148 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 61.

The spelling of 138516697168 in words is "one hundred thirty-eight billion, five hundred sixteen million, six hundred ninety-seven thousand, one hundred sixty-eight".