16716157291 has 2 divisors, whose sum is σ = 16716157292. Its totient is φ = 16716157290.

The previous prime is 16716157219. The next prime is 16716157309. The reversal of 16716157291 is 19275161761.

Together with previous prime (16716157219) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (19275161761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16716157291 - 2²³ = 16707768683 is a prime.

It is not a weakly prime, because it can be changed into another prime (16716157691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358078645 + 8358078646.

It is an arithmetic number, because the mean of its divisors is an integer number (8358078646).

Almost surely, 2^16716157291 is an apocalyptic number.

16716157291 is a deficient number, since it is larger than the sum of its proper divisors (1).

16716157291 is an equidigital number, since it uses as much as digits as its factorization.

16716157291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 46.

The spelling of 16716157291 in words is "sixteen billion, seven hundred sixteen million, one hundred fifty-seven thousand, two hundred ninety-one".