316665332257 has 2 divisors, whose sum is σ = 316665332258. Its totient is φ = 316665332256.

The previous prime is 316665332161. The next prime is 316665332287. The reversal of 316665332257 is 752233566613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222443346321 + 94221985936 = 471639^2 + 306956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316665332257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316665332257.

It is not a weakly prime, because it can be changed into another prime (316665332287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158332666128 + 158332666129.

It is an arithmetic number, because the mean of its divisors is an integer number (158332666129).

Almost surely, 2^316665332257 is an apocalyptic number.

It is an amenable number.

316665332257 is a deficient number, since it is larger than the sum of its proper divisors (1).

316665332257 is an equidigital number, since it uses as much as digits as its factorization.

316665332257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 49.

The spelling of 316665332257 in words is "three hundred sixteen billion, six hundred sixty-five million, three hundred thirty-two thousand, two hundred fifty-seven".