12185160173538 has 32 divisors (see below), whose sum is σ = 26594058376512. Its totient is φ = 3691326340800.

The previous prime is 12185160173479. The next prime is 12185160173539. The reversal of 12185160173538 is 83537106158121.

It is not an unprimeable number, because it can be changed into a prime (12185160173539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28446781 + ... + 28871952.

It is an arithmetic number, because the mean of its divisors is an integer number (831064324266).

Almost surely, 2^{12185160173538} is an apocalyptic number.

12185160173538 is an abundant number, since it is smaller than the sum of its proper divisors (14408898202974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12185160173538 is a wasteful number, since it uses less digits than its factorization.

12185160173538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57321970.

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 12185160173538 in words is "twelve trillion, one hundred eighty-five billion, one hundred sixty million, one hundred seventy-three thousand, five hundred thirty-eight".