138547246556 has 12 divisors (see below), whose sum is σ = 243812194920. Its totient is φ = 68886619440.

The previous prime is 138547246547. The next prime is 138547246573. The reversal of 138547246556 is 655642745831.

It is a super-2 number, since 2×138547246556² (a number of 23 digits) contains 22 as substring.

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, 96750155 + ... + 96751586.

It is an arithmetic number, because the mean of its divisors is an integer number (20317682910).

Almost surely, 2^138547246556 is an apocalyptic number.

It is an amenable number.

138547246556 is a deficient number, since it is larger than the sum of its proper divisors (105264948364).

138547246556 is a wasteful number, since it uses less digits than its factorization.

138547246556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193501924 (or 193501922 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 56.

The spelling of 138547246556 in words is "one hundred thirty-eight billion, five hundred forty-seven million, two hundred forty-six thousand, five hundred fifty-six".