316583715881 has 2 divisors, whose sum is σ = 316583715882. Its totient is φ = 316583715880.

The previous prime is 316583715859. The next prime is 316583715961. The reversal of 316583715881 is 188517385613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245040840256 + 71542875625 = 495016^2 + 267475^2 .

It is an emirp because it is prime and its reverse (188517385613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316583715881 - 2¹⁸ = 316583453737 is a prime.

It is a super-2 number, since 2×316583715881² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (316583775881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158291857940 + 158291857941.

It is an arithmetic number, because the mean of its divisors is an integer number (158291857941).

Almost surely, 2^316583715881 is an apocalyptic number.

It is an amenable number.

316583715881 is a deficient number, since it is larger than the sum of its proper divisors (1).

316583715881 is an equidigital number, since it uses as much as digits as its factorization.

316583715881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 56.

The spelling of 316583715881 in words is "three hundred sixteen billion, five hundred eighty-three million, seven hundred fifteen thousand, eight hundred eighty-one".