12517162556 has 6 divisors (see below), whose sum is σ = 21905034480. Its totient is φ = 6258581276.

The previous prime is 12517162549. The next prime is 12517162573. The reversal of 12517162556 is 65526171521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564645316 + ... + 1564645323.

It is an arithmetic number, because the mean of its divisors is an integer number (3650839080).

Almost surely, 2^12517162556 is an apocalyptic number.

It is an amenable number.

12517162556 is a deficient number, since it is larger than the sum of its proper divisors (9387871924).

12517162556 is a wasteful number, since it uses less digits than its factorization.

12517162556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129290643 (or 3129290641 counting only the distinct ones).

The product of its digits is 126000, while the sum is 41.

The spelling of 12517162556 in words is "twelve billion, five hundred seventeen million, one hundred sixty-two thousand, five hundred fifty-six".