16004164 has 12 divisors (see below), whose sum is σ = 30553488. Its totient is φ = 7274600.

The previous prime is 16004147. The next prime is 16004167. The reversal of 16004164 is 46140061.

It is a super-2 number, since 2×16004164² = 512266530677792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (16004167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181822 + ... + 181909.

It is an arithmetic number, because the mean of its divisors is an integer number (2546124).

Almost surely, 2^16004164 is an apocalyptic number.

It is an amenable number.

16004164 is a deficient number, since it is larger than the sum of its proper divisors (14549324).

16004164 is a wasteful number, since it uses less digits than its factorization.

16004164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363746 (or 363744 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16004164 is about 4000.5204661394. The cubic root of 16004164 is about 252.0060677131.

The spelling of 16004164 in words is "sixteen million, four thousand, one hundred sixty-four".