316151046521 has 2 divisors, whose sum is σ = 316151046522. Its totient is φ = 316151046520.

The previous prime is 316151046503. The next prime is 316151046527. The reversal of 316151046521 is 125640151613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177737284921 + 138413761600 = 421589^2 + 372040^2 .

It is a cyclic number.

It is not a de Polignac number, because 316151046521 - 2⁶ = 316151046457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (316151046527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158075523260 + 158075523261.

It is an arithmetic number, because the mean of its divisors is an integer number (158075523261).

Almost surely, 2^316151046521 is an apocalyptic number.

It is an amenable number.

316151046521 is a deficient number, since it is larger than the sum of its proper divisors (1).

316151046521 is an equidigital number, since it uses as much as digits as its factorization.

316151046521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 316151046521 in words is "three hundred sixteen billion, one hundred fifty-one million, forty-six thousand, five hundred twenty-one".