12115666325 has 24 divisors (see below), whose sum is σ = 17177317248. Its totient is φ = 8304166080.

The previous prime is 12115666319. The next prime is 12115666361. The reversal of 12115666325 is 52366651121.

It is not a de Polignac number, because 12115666325 - 2⁶ = 12115666261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409739 + ... + 438311.

It is an arithmetic number, because the mean of its divisors is an integer number (715721552).

Almost surely, 2^12115666325 is an apocalyptic number.

It is an amenable number.

12115666325 is a deficient number, since it is larger than the sum of its proper divisors (5061650923).

12115666325 is a wasteful number, since it uses less digits than its factorization.

12115666325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31013 (or 31008 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The spelling of 12115666325 in words is "twelve billion, one hundred fifteen million, six hundred sixty-six thousand, three hundred twenty-five".