316515618361 has 2 divisors, whose sum is σ = 316515618362. Its totient is φ = 316515618360.

The previous prime is 316515618317. The next prime is 316515618403. The reversal of 316515618361 is 163816515613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289369760761 + 27145857600 = 537931^2 + 164760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316515618361 is a prime.

It is not a weakly prime, because it can be changed into another prime (316515610361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158257809180 + 158257809181.

It is an arithmetic number, because the mean of its divisors is an integer number (158257809181).

Almost surely, 2^316515618361 is an apocalyptic number.

It is an amenable number.

316515618361 is a deficient number, since it is larger than the sum of its proper divisors (1).

316515618361 is an equidigital number, since it uses as much as digits as its factorization.

316515618361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 46.

The spelling of 316515618361 in words is "three hundred sixteen billion, five hundred fifteen million, six hundred eighteen thousand, three hundred sixty-one".