12501937155 has 16 divisors (see below), whose sum is σ = 20872800000. Its totient is φ = 6377799648.

The previous prime is 12501937127. The next prime is 12501937181. The reversal of 12501937155 is 55173910521.

It is not a de Polignac number, because 12501937155 - 2⁸ = 12501936899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18118405 + ... + 18119094.

It is an arithmetic number, because the mean of its divisors is an integer number (1304550000).

Almost surely, 2^12501937155 is an apocalyptic number.

12501937155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12501937155 is a deficient number, since it is larger than the sum of its proper divisors (8370862845).

12501937155 is a wasteful number, since it uses less digits than its factorization.

12501937155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36237530.

The product of its (nonzero) digits is 47250, while the sum is 39.

The spelling of 12501937155 in words is "twelve billion, five hundred one million, nine hundred thirty-seven thousand, one hundred fifty-five".