316166532455537 has 2 divisors, whose sum is σ = 316166532455538. Its totient is φ = 316166532455536.

The previous prime is 316166532455513. The next prime is 316166532455551. The reversal of 316166532455537 is 735554235661613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311992025583616 + 4174506871921 = 17663296^2 + 2043161^2 .

It is a cyclic number.

It is not a de Polignac number, because 316166532455537 - 2⁸ = 316166532455281 is a prime.

It is a super-2 number, since 2×316166532455537² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 316166532455537.

It is not a weakly prime, because it can be changed into another prime (316166532455237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158083266227768 + 158083266227769.

It is an arithmetic number, because the mean of its divisors is an integer number (158083266227769).

Almost surely, 2^{316166532455537} is an apocalyptic number.

It is an amenable number.

316166532455537 is a deficient number, since it is larger than the sum of its proper divisors (1).

316166532455537 is an equidigital number, since it uses as much as digits as its factorization.

316166532455537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120000, while the sum is 62.

The spelling of 316166532455537 in words is "three hundred sixteen trillion, one hundred sixty-six billion, five hundred thirty-two million, four hundred fifty-five thousand, five hundred thirty-seven".