316324626502561 has 2 divisors, whose sum is σ = 316324626502562. Its totient is φ = 316324626502560.

The previous prime is 316324626502499. The next prime is 316324626502571. The reversal of 316324626502561 is 165205626423613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270400367261025 + 45924259241536 = 16443855^2 + 6776744^2 .

It is a cyclic number.

It is not a de Polignac number, because 316324626502561 - 2¹⁷ = 316324626371489 is a prime.

It is a super-2 number, since 2×316324626502561² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 316324626502499 and 316324626502508.

It is not a weakly prime, because it can be changed into another prime (316324626502571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158162313251280 + 158162313251281.

It is an arithmetic number, because the mean of its divisors is an integer number (158162313251281).

Almost surely, 2^{316324626502561} is an apocalyptic number.

It is an amenable number.

316324626502561 is a deficient number, since it is larger than the sum of its proper divisors (1).

316324626502561 is an equidigital number, since it uses as much as digits as its factorization.

316324626502561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 316324626502561 in words is "three hundred sixteen trillion, three hundred twenty-four billion, six hundred twenty-six million, five hundred two thousand, five hundred sixty-one".