16656093686 has 8 divisors (see below), whose sum is σ = 24995024280. Its totient is φ = 8324418928.

The previous prime is 16656093661. The next prime is 16656093697. The reversal of 16656093686 is 68639065661.

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, 1808216 + ... + 1817403.

It is an arithmetic number, because the mean of its divisors is an integer number (3124378035).

Almost surely, 2^16656093686 is an apocalyptic number.

16656093686 is a deficient number, since it is larger than the sum of its proper divisors (8338930594).

16656093686 is a wasteful number, since it uses less digits than its factorization.

16656093686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627918.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 16656093686 in words is "sixteen billion, six hundred fifty-six million, ninety-three thousand, six hundred eighty-six".