316450562261 has 2 divisors, whose sum is σ = 316450562262. Its totient is φ = 316450562260.

The previous prime is 316450562249. The next prime is 316450562293. The reversal of 316450562261 is 162265054613.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293026259761 + 23424302500 = 541319^2 + 153050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316450562261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316450562761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158225281130 + 158225281131.

It is an arithmetic number, because the mean of its divisors is an integer number (158225281131).

Almost surely, 2^316450562261 is an apocalyptic number.

It is an amenable number.

316450562261 is a deficient number, since it is larger than the sum of its proper divisors (1).

316450562261 is an equidigital number, since it uses as much as digits as its factorization.

316450562261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 316450562261 in words is "three hundred sixteen billion, four hundred fifty million, five hundred sixty-two thousand, two hundred sixty-one".