15995216 has 20 divisors (see below), whose sum is σ = 31283712. Its totient is φ = 7922016.

The previous prime is 15995197. The next prime is 15995227. The reversal of 15995216 is 61259951.

It is a self number, because there is not a number n which added to its sum of digits gives 15995216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960 + ... + 6383.

Almost surely, 2^15995216 is an apocalyptic number.

15995216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15995216 is a deficient number, since it is larger than the sum of its proper divisors (15288496).

15995216 is a wasteful number, since it uses less digits than its factorization.

15995216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9458 (or 9452 counting only the distinct ones).

The product of its digits is 24300, while the sum is 38.

The square root of 15995216 is about 3999.4019552928. The cubic root of 15995216 is about 251.9590930492.

The spelling of 15995216 in words is "fifteen million, nine hundred ninety-five thousand, two hundred sixteen".