316322261166209 has 2 divisors, whose sum is σ = 316322261166210. Its totient is φ = 316322261166208.

The previous prime is 316322261166181. The next prime is 316322261166269. The reversal of 316322261166209 is 902661162223613.

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., 307285894503184 + 9036366663025 = 17529572^2 + 3006055^2 .

It is a cyclic number.

It is not a de Polignac number, because 316322261166209 - 2¹⁶ = 316322261100673 is a prime.

It is not a weakly prime, because it can be changed into another prime (316322261166269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158161130583104 + 158161130583105.

It is an arithmetic number, because the mean of its divisors is an integer number (158161130583105).

Almost surely, 2^{316322261166209} is an apocalyptic number.

It is an amenable number.

316322261166209 is a deficient number, since it is larger than the sum of its proper divisors (1).

316322261166209 is an equidigital number, since it uses as much as digits as its factorization.

316322261166209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 316322261166209 in words is "three hundred sixteen trillion, three hundred twenty-two billion, two hundred sixty-one million, one hundred sixty-six thousand, two hundred nine".