16660366 has 8 divisors (see below), whose sum is σ = 25041744. Its totient is φ = 8313120.

The previous prime is 16660351. The next prime is 16660403. The reversal of 16660366 is 66306661.

It is a happy number.

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, 7275 + ... + 9286.

It is an arithmetic number, because the mean of its divisors is an integer number (3130218).

Almost surely, 2^16660366 is an apocalyptic number.

16660366 is a deficient number, since it is larger than the sum of its proper divisors (8381378).

16660366 is a wasteful number, since it uses less digits than its factorization.

16660366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17066.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 16660366 is about 4081.7111607756. The cubic root of 16660366 is about 255.4042850055.

The spelling of 16660366 in words is "sixteen million, six hundred sixty thousand, three hundred sixty-six".