12665138900139 has 24 divisors (see below), whose sum is σ = 20645367490800. Its totient is φ = 7411157557440.

The previous prime is 12665138900137. The next prime is 12665138900231. The reversal of 12665138900139 is 93100983156621.

12665138900139 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 513 + 8 + 90 + 0 + 1 + 39 = 666.

It is not a de Polignac number, because 12665138900139 - 2¹ = 12665138900137 is a prime.

It is a super-2 number, since 2×12665138900139² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12665138900137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2205698784 + ... + 2205704525.

It is an arithmetic number, because the mean of its divisors is an integer number (860223645450).

Almost surely, 2^{12665138900139} is an apocalyptic number.

12665138900139 is a deficient number, since it is larger than the sum of its proper divisors (7980228590661).

12665138900139 is a wasteful number, since it uses less digits than its factorization.

12665138900139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411403355 (or 4411403352 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 12665138900139 in words is "twelve trillion, six hundred sixty-five billion, one hundred thirty-eight million, nine hundred thousand, one hundred thirty-nine".