316253849161 has 2 divisors, whose sum is σ = 316253849162. Its totient is φ = 316253849160.

The previous prime is 316253849141. The next prime is 316253849179. The reversal of 316253849161 is 161948352613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255272510025 + 60981339136 = 505245^2 + 246944^2 .

It is a cyclic number.

It is not a de Polignac number, because 316253849161 - 2⁹ = 316253848649 is a prime.

It is not a weakly prime, because it can be changed into another prime (316253849141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158126924580 + 158126924581.

It is an arithmetic number, because the mean of its divisors is an integer number (158126924581).

Almost surely, 2^316253849161 is an apocalyptic number.

It is an amenable number.

316253849161 is a deficient number, since it is larger than the sum of its proper divisors (1).

316253849161 is an equidigital number, since it uses as much as digits as its factorization.

316253849161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The spelling of 316253849161 in words is "three hundred sixteen billion, two hundred fifty-three million, eight hundred forty-nine thousand, one hundred sixty-one".