316515618317 has 2 divisors, whose sum is σ = 316515618318. Its totient is φ = 316515618316.

The previous prime is 316515618299. The next prime is 316515618361. The reversal of 316515618317 is 713816515613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306391032676 + 10124585641 = 553526^2 + 100621^2 .

It is a cyclic number.

It is not a de Polignac number, because 316515618317 - 2²⁴ = 316498841101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316515618917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158257809158 + 158257809159.

It is an arithmetic number, because the mean of its divisors is an integer number (158257809159).

Almost surely, 2^316515618317 is an apocalyptic number.

It is an amenable number.

316515618317 is a deficient number, since it is larger than the sum of its proper divisors (1).

316515618317 is an equidigital number, since it uses as much as digits as its factorization.

316515618317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 47.

The spelling of 316515618317 in words is "three hundred sixteen billion, five hundred fifteen million, six hundred eighteen thousand, three hundred seventeen".