16315370161 has 2 divisors, whose sum is σ = 16315370162. Its totient is φ = 16315370160.

The previous prime is 16315370147. The next prime is 16315370171. The reversal of 16315370161 is 16107351361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15514197136 + 801173025 = 124556^2 + 28305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16315370161 is a prime.

It is not a weakly prime, because it can be changed into another prime (16315370111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157685080 + 8157685081.

It is an arithmetic number, because the mean of its divisors is an integer number (8157685081).

Almost surely, 2^16315370161 is an apocalyptic number.

It is an amenable number.

16315370161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315370161 is an equidigital number, since it uses as much as digits as its factorization.

16315370161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The spelling of 16315370161 in words is "sixteen billion, three hundred fifteen million, three hundred seventy thousand, one hundred sixty-one".