16865996929 has 16 divisors (see below), whose sum is σ = 17798901120. Its totient is φ = 15959784960.

The previous prime is 16865996909. The next prime is 16865996951. The reversal of 16865996929 is 92969956861.

It is a cyclic number.

It is not a de Polignac number, because 16865996929 - 2⁵ = 16865996897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16865996909) 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, 260634 + ... + 318844.

It is an arithmetic number, because the mean of its divisors is an integer number (1112431320).

Almost surely, 2^16865996929 is an apocalyptic number.

It is an amenable number.

16865996929 is a deficient number, since it is larger than the sum of its proper divisors (932904191).

16865996929 is a wasteful number, since it uses less digits than its factorization.

16865996929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58440.

The product of its digits is 113374080, while the sum is 70.

The spelling of 16865996929 in words is "sixteen billion, eight hundred sixty-five million, nine hundred ninety-six thousand, nine hundred twenty-nine".