3117957665 has 16 divisors (see below), whose sum is σ = 3985934400. Its totient is φ = 2334606912.

The previous prime is 3117957631. The next prime is 3117957691. The reversal of 3117957665 is 5667597113.

It is not a de Polignac number, because 3117957665 - 2²⁸ = 2849522209 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189830 + ... + 205599.

It is an arithmetic number, because the mean of its divisors is an integer number (249120900).

Almost surely, 2^3117957665 is an apocalyptic number.

It is an amenable number.

3117957665 is a deficient number, since it is larger than the sum of its proper divisors (867976735).

3117957665 is a wasteful number, since it uses less digits than its factorization.

3117957665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395536.

The product of its digits is 1190700, while the sum is 50.

The square root of 3117957665 is about 55838.6753514085. The cubic root of 3117957665 is about 1460.9098077659.

The spelling of 3117957665 in words is "three billion, one hundred seventeen million, nine hundred fifty-seven thousand, six hundred sixty-five".