16666045 has 8 divisors (see below), whose sum is σ = 21817440. Its totient is φ = 12120720.

The previous prime is 16666037. The next prime is 16666057. The reversal of 16666045 is 54066661.

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

It is not a de Polignac number, because 16666045 - 2³ = 16666037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16666045.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 151455 + ... + 151564.

It is an arithmetic number, because the mean of its divisors is an integer number (2727180).

Almost surely, 2^16666045 is an apocalyptic number.

It is an amenable number.

16666045 is a deficient number, since it is larger than the sum of its proper divisors (5151395).

16666045 is a wasteful number, since it uses less digits than its factorization.

16666045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303035.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 16666045 is about 4082.4067656225. The cubic root of 16666045 is about 255.4333014982.

The spelling of 16666045 in words is "sixteen million, six hundred sixty-six thousand, forty-five".