16686718803 has 12 divisors (see below), whose sum is σ = 24557813280. Its totient is φ = 10914583056.

The previous prime is 16686718759. The next prime is 16686718861. The reversal of 16686718803 is 30881768661.

It is not a de Polignac number, because 16686718803 - 2⁶ = 16686718739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16686718803.

It is not an unprimeable number, because it can be changed into a prime (16686718703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17490843 + ... + 17491796.

It is an arithmetic number, because the mean of its divisors is an integer number (2046484440).

Almost surely, 2^16686718803 is an apocalyptic number.

16686718803 is a deficient number, since it is larger than the sum of its proper divisors (7871094477).

16686718803 is a wasteful number, since it uses less digits than its factorization.

16686718803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34982698 (or 34982695 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 16686718803 in words is "sixteen billion, six hundred eighty-six million, seven hundred eighteen thousand, eight hundred three".