16656366 has 8 divisors (see below), whose sum is σ = 33312744. Its totient is φ = 5552120.

The previous prime is 16656361. The next prime is 16656371. The reversal of 16656366 is 66365661.

It is an interprime number because it is at equal distance from previous prime (16656361) and next prime (16656371).

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

16656366 is an admirable number.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388025 + ... + 1388036.

It is an arithmetic number, because the mean of its divisors is an integer number (4164093).

Almost surely, 2^16656366 is an apocalyptic number.

16656366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16656366 is a wasteful number, since it uses less digits than its factorization.

16656366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776066.

The product of its digits is 116640, while the sum is 39.

The square root of 16656366 is about 4081.2211407862. The cubic root of 16656366 is about 255.3838432995.

The spelling of 16656366 in words is "sixteen million, six hundred fifty-six thousand, three hundred sixty-six".