16664151 has 16 divisors (see below), whose sum is σ = 25459200. Its totient is φ = 9497568.

The previous prime is 16664149. The next prime is 16664161. The reversal of 16664151 is 15146661.

It is not a de Polignac number, because 16664151 - 2¹ = 16664149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16664111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9910 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (1591200).

Almost surely, 2^16664151 is an apocalyptic number.

16664151 is a deficient number, since it is larger than the sum of its proper divisors (8795049).

16664151 is a wasteful number, since it uses less digits than its factorization.

16664151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078.

The product of its digits is 4320, while the sum is 30.

The square root of 16664151 is about 4082.1747880266. The cubic root of 16664151 is about 255.4236249572.

The spelling of 16664151 in words is "sixteen million, six hundred sixty-four thousand, one hundred fifty-one".