16685815608038 has 8 divisors (see below), whose sum is σ = 25042043653680. Its totient is φ = 8338467723480.

The previous prime is 16685815608023. The next prime is 16685815608041. The reversal of 16685815608038 is 83080651858661.

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

It is a congruent number.

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, 2220035573 + ... + 2220043088.

It is an arithmetic number, because the mean of its divisors is an integer number (3130255456710).

Almost surely, 2^{16685815608038} is an apocalyptic number.

16685815608038 is a deficient number, since it is larger than the sum of its proper divisors (8356228045642).

16685815608038 is a wasteful number, since it uses less digits than its factorization.

16685815608038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440080542.

The product of its (nonzero) digits is 66355200, while the sum is 65.

The spelling of 16685815608038 in words is "sixteen trillion, six hundred eighty-five billion, eight hundred fifteen million, six hundred eight thousand, thirty-eight".