16664267 has 16 divisors (see below), whose sum is σ = 18450432. Its totient is φ = 14981760.

The previous prime is 16664261. The next prime is 16664317. The reversal of 16664267 is 76246661.

It is not a de Polignac number, because 16664267 - 2⁶ = 16664203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16664267.

It is not an unprimeable number, because it can be changed into a prime (16664261) 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, 54128 + ... + 54434.

It is an arithmetic number, because the mean of its divisors is an integer number (1153152).

Almost surely, 2^16664267 is an apocalyptic number.

16664267 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16664267 is a deficient number, since it is larger than the sum of its proper divisors (1786165).

16664267 is a wasteful number, since it uses less digits than its factorization.

16664267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its digits is 72576, while the sum is 38.

The square root of 16664267 is about 4082.1889961147. The cubic root of 16664267 is about 255.4242176281.

The spelling of 16664267 in words is "sixteen million, six hundred sixty-four thousand, two hundred sixty-seven".