6517663112625 has 192 divisors, whose sum is σ = 12564237064704. Its totient is φ = 2939269939200.

The previous prime is 6517663112621. The next prime is 6517663112671. The reversal of 6517663112625 is 5262113667156.

It is a happy number.

It is not a de Polignac number, because 6517663112625 - 2² = 6517663112621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6517663112621) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11295776337 + ... + 11295776913.

It is an arithmetic number, because the mean of its divisors is an integer number (65438734712).

Almost surely, 2^{6517663112625} is an apocalyptic number.

It is an amenable number.

6517663112625 is a deficient number, since it is larger than the sum of its proper divisors (6046573952079).

6517663112625 is a wasteful number, since it uses less digits than its factorization.

6517663112625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1042 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 51.

The spelling of 6517663112625 in words is "six trillion, five hundred seventeen billion, six hundred sixty-three million, one hundred twelve thousand, six hundred twenty-five".