16568974129 has 16 divisors (see below), whose sum is σ = 17714894400. Its totient is φ = 15442645504.

The previous prime is 16568974091. The next prime is 16568974153. The reversal of 16568974129 is 92147986561.

It is not a de Polignac number, because 16568974129 - 2²⁵ = 16535419697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16568974159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967362 + ... + 984340.

It is an arithmetic number, because the mean of its divisors is an integer number (1107180900).

Almost surely, 2^16568974129 is an apocalyptic number.

It is an amenable number.

16568974129 is a deficient number, since it is larger than the sum of its proper divisors (1145920271).

16568974129 is a wasteful number, since it uses less digits than its factorization.

16568974129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17552.

The product of its digits is 6531840, while the sum is 58.

The spelling of 16568974129 in words is "sixteen billion, five hundred sixty-eight million, nine hundred seventy-four thousand, one hundred twenty-nine".