16866146 has 16 divisors (see below), whose sum is σ = 27675648. Its totient is φ = 7645200.

The previous prime is 16866133. The next prime is 16866149. The reversal of 16866146 is 64166861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16866149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9311 + ... + 10973.

It is an arithmetic number, because the mean of its divisors is an integer number (1729728).

Almost surely, 2^16866146 is an apocalyptic number.

16866146 is a deficient number, since it is larger than the sum of its proper divisors (10809502).

16866146 is a wasteful number, since it uses less digits than its factorization.

16866146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137.

The product of its digits is 41472, while the sum is 38.

The square root of 16866146 is about 4106.8413653318. The cubic root of 16866146 is about 256.4515245179.

The spelling of 16866146 in words is "sixteen million, eight hundred sixty-six thousand, one hundred forty-six".