316161901633 has 2 divisors, whose sum is σ = 316161901634. Its totient is φ = 316161901632.

The previous prime is 316161901619. The next prime is 316161901667. The reversal of 316161901633 is 336109161613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173616388929 + 142545512704 = 416673^2 + 377552^2 .

It is an emirp because it is prime and its reverse (336109161613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316161901633 - 2¹³ = 316161893441 is a prime.

It is not a weakly prime, because it can be changed into another prime (316161904633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158080950816 + 158080950817.

It is an arithmetic number, because the mean of its divisors is an integer number (158080950817).

Almost surely, 2^316161901633 is an apocalyptic number.

It is an amenable number.

316161901633 is a deficient number, since it is larger than the sum of its proper divisors (1).

316161901633 is an equidigital number, since it uses as much as digits as its factorization.

316161901633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 316161901633 in words is "three hundred sixteen billion, one hundred sixty-one million, nine hundred one thousand, six hundred thirty-three".