138361162756 has 12 divisors (see below), whose sum is σ = 242225432092. Its totient is φ = 69153896448.

The previous prime is 138361162739. The next prime is 138361162799. The reversal of 138361162756 is 657261163831.

It can be written as a sum of positive squares in 2 ways, for example, as 52892640256 + 85468522500 = 229984^2 + 292350^2 .

It is a super-2 number, since 2×138361162756² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6659565 + ... + 6680308.

Almost surely, 2^138361162756 is an apocalyptic number.

It is an amenable number.

138361162756 is a deficient number, since it is larger than the sum of its proper divisors (103864269336).

138361162756 is a wasteful number, since it uses less digits than its factorization.

138361162756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13342470 (or 13342468 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The spelling of 138361162756 in words is "one hundred thirty-eight billion, three hundred sixty-one million, one hundred sixty-two thousand, seven hundred fifty-six".