6517116565 has 8 divisors (see below), whose sum is σ = 8232147360. Its totient is φ = 4939288272.

The previous prime is 6517116559. The next prime is 6517116587. The reversal of 6517116565 is 5656117156.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6517116565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34300519 + ... + 34300708.

It is an arithmetic number, because the mean of its divisors is an integer number (1029018420).

Almost surely, 2^6517116565 is an apocalyptic number.

It is an amenable number.

6517116565 is a deficient number, since it is larger than the sum of its proper divisors (1715030795).

6517116565 is a wasteful number, since it uses less digits than its factorization.

6517116565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68601251.

The product of its digits is 189000, while the sum is 43.

The square root of 6517116565 is about 80728.6601214216. The cubic root of 6517116565 is about 1867.8922905316.

The spelling of 6517116565 in words is "six billion, five hundred seventeen million, one hundred sixteen thousand, five hundred sixty-five".