16316162491 has 2 divisors, whose sum is σ = 16316162492. Its totient is φ = 16316162490.

The previous prime is 16316162371. The next prime is 16316162501. The reversal of 16316162491 is 19426161361.

It is a strong prime.

It is an emirp because it is prime and its reverse (19426161361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16316162491 - 2¹⁹ = 16315638203 is a prime.

It is not a weakly prime, because it can be changed into another prime (16316165491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8158081245 + 8158081246.

It is an arithmetic number, because the mean of its divisors is an integer number (8158081246).

Almost surely, 2^16316162491 is an apocalyptic number.

16316162491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16316162491 is an equidigital number, since it uses as much as digits as its factorization.

16316162491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The spelling of 16316162491 in words is "sixteen billion, three hundred sixteen million, one hundred sixty-two thousand, four hundred ninety-one".