16604265 has 16 divisors (see below), whose sum is σ = 26633088. Its totient is φ = 8833536.

The previous prime is 16604243. The next prime is 16604267. The reversal of 16604265 is 56240661.

It is not a de Polignac number, because 16604265 - 2⁶ = 16604201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16604267) 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, 6169 + ... + 8441.

It is an arithmetic number, because the mean of its divisors is an integer number (1664568).

Almost surely, 2^16604265 is an apocalyptic number.

16604265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16604265 is a deficient number, since it is larger than the sum of its proper divisors (10028823).

16604265 is a wasteful number, since it uses less digits than its factorization.

16604265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 16604265 is about 4074.8331254175. The cubic root of 16604265 is about 255.1172855319.

The spelling of 16604265 in words is "sixteen million, six hundred four thousand, two hundred sixty-five".