12517137156657 has 8 divisors (see below), whose sum is σ = 19073732810176. Its totient is φ = 7152649803792.

The previous prime is 12517137156653. The next prime is 12517137156701. The reversal of 12517137156657 is 75665173171521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12517137156657 - 2² = 12517137156653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12517137156597 and 12517137156606.

It is not an unprimeable number, because it can be changed into a prime (12517137156653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298027075138 + ... + 298027075179.

It is an arithmetic number, because the mean of its divisors is an integer number (2384216601272).

Almost surely, 2^{12517137156657} is an apocalyptic number.

It is an amenable number.

12517137156657 is a deficient number, since it is larger than the sum of its proper divisors (6556595653519).

12517137156657 is an equidigital number, since it uses as much as digits as its factorization.

12517137156657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596054150327.

The product of its digits is 9261000, while the sum is 57.

The spelling of 12517137156657 in words is "twelve trillion, five hundred seventeen billion, one hundred thirty-seven million, one hundred fifty-six thousand, six hundred fifty-seven".