16564163 has 32 divisors (see below), whose sum is σ = 22118400. Its totient is φ = 12022560.

The previous prime is 16564157. The next prime is 16564183. The reversal of 16564163 is 36146561.

It is not a de Polignac number, because 16564163 - 2⁶ = 16564099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16564183) 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 31 ways as a sum of consecutive naturals, for example, 83138 + ... + 83336.

It is an arithmetic number, because the mean of its divisors is an integer number (691200).

Almost surely, 2^16564163 is an apocalyptic number.

16564163 is a deficient number, since it is larger than the sum of its proper divisors (5554237).

16564163 is a wasteful number, since it uses less digits than its factorization.

16564163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its digits is 12960, while the sum is 32.

The square root of 16564163 is about 4069.9094584524. The cubic root of 16564163 is about 254.9117367219.

The spelling of 16564163 in words is "sixteen million, five hundred sixty-four thousand, one hundred sixty-three".