16685115794 has 8 divisors (see below), whose sum is σ = 25028632908. Its totient is φ = 8342238160.

The previous prime is 16685115773. The next prime is 16685115823. The reversal of 16685115794 is 49751158661.

It can be written as a sum of positive squares in 2 ways, for example, as 12442287025 + 4242828769 = 111545^2 + 65137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88217 + ... + 202860.

Almost surely, 2^16685115794 is an apocalyptic number.

16685115794 is a deficient number, since it is larger than the sum of its proper divisors (8343517114).

16685115794 is a wasteful number, since it uses less digits than its factorization.

16685115794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319740.

The product of its digits is 1814400, while the sum is 53.

The spelling of 16685115794 in words is "sixteen billion, six hundred eighty-five million, one hundred fifteen thousand, seven hundred ninety-four".