16656368 has 20 divisors (see below), whose sum is σ = 32341680. Its totient is φ = 8310144.

The previous prime is 16656361. The next prime is 16656371. The reversal of 16656368 is 86365661.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16656361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9548 + ... + 11156.

It is an arithmetic number, because the mean of its divisors is an integer number (1617084).

Almost surely, 2^16656368 is an apocalyptic number.

It is an amenable number.

16656368 is a deficient number, since it is larger than the sum of its proper divisors (15685312).

16656368 is a wasteful number, since it uses less digits than its factorization.

16656368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2258 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 16656368 is about 4081.2213858109. The cubic root of 16656368 is about 255.3838535212.

The spelling of 16656368 in words is "sixteen million, six hundred fifty-six thousand, three hundred sixty-eight".