11567216 has 20 divisors (see below), whose sum is σ = 23135424. Its totient is φ = 5596800.

The previous prime is 11567203. The next prime is 11567221. The reversal of 11567216 is 61276511.

11567216 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11165 + ... + 12156.

Almost surely, 2^11567216 is an apocalyptic number.

11567216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11567216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11567216 is a wasteful number, since it uses less digits than its factorization.

11567216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23360 (or 23354 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 11567216 is about 3401.0610109200. The cubic root of 11567216 is about 226.1567815973.

The spelling of 11567216 in words is "eleven million, five hundred sixty-seven thousand, two hundred sixteen".