318670017161 has 2 divisors, whose sum is σ = 318670017162. Its totient is φ = 318670017160.

The previous prime is 318670017109. The next prime is 318670017191. The reversal of 318670017161 is 161710076813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186451240000 + 132218777161 = 431800^2 + 363619^2 .

It is an emirp because it is prime and its reverse (161710076813) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318670017161 is a prime.

It is not a weakly prime, because it can be changed into another prime (318670017191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159335008580 + 159335008581.

It is an arithmetic number, because the mean of its divisors is an integer number (159335008581).

Almost surely, 2^318670017161 is an apocalyptic number.

It is an amenable number.

318670017161 is a deficient number, since it is larger than the sum of its proper divisors (1).

318670017161 is an equidigital number, since it uses as much as digits as its factorization.

318670017161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 318670017161 in words is "three hundred eighteen billion, six hundred seventy million, seventeen thousand, one hundred sixty-one".