16666327 has 16 divisors (see below), whose sum is σ = 17791488. Its totient is φ = 15593760.

The previous prime is 16666319. The next prime is 16666343. The reversal of 16666327 is 72366661.

It is a cyclic number.

It is not a de Polignac number, because 16666327 - 2³ = 16666319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666357) 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 15 ways as a sum of consecutive naturals, for example, 161758 + ... + 161860.

It is an arithmetic number, because the mean of its divisors is an integer number (1111968).

Almost surely, 2^16666327 is an apocalyptic number.

16666327 is a deficient number, since it is larger than the sum of its proper divisors (1125161).

16666327 is a wasteful number, since it uses less digits than its factorization.

16666327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270.

The product of its digits is 54432, while the sum is 37.

The square root of 16666327 is about 4082.4413039259. The cubic root of 16666327 is about 255.4347421876.

The spelling of 16666327 in words is "sixteen million, six hundred sixty-six thousand, three hundred twenty-seven".