16568974159 has 2 divisors, whose sum is σ = 16568974160. Its totient is φ = 16568974158.

The previous prime is 16568974157. The next prime is 16568974193. The reversal of 16568974159 is 95147986561.

It is a weak prime.

It is an emirp because it is prime and its reverse (95147986561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16568974159 - 2¹ = 16568974157 is a prime.

Together with 16568974157, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16568974097 and 16568974106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16568974153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8284487079 + 8284487080.

It is an arithmetic number, because the mean of its divisors is an integer number (8284487080).

Almost surely, 2^16568974159 is an apocalyptic number.

16568974159 is a deficient number, since it is larger than the sum of its proper divisors (1).

16568974159 is an equidigital number, since it uses as much as digits as its factorization.

16568974159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 61.

The spelling of 16568974159 in words is "sixteen billion, five hundred sixty-eight million, nine hundred seventy-four thousand, one hundred fifty-nine".