15968816 has 20 divisors (see below), whose sum is σ = 32568600. Its totient is φ = 7564032.

The previous prime is 15968809. The next prime is 15968833. The reversal of 15968816 is 61886951.

15968816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 25961 + ... + 26568.

It is an arithmetic number, because the mean of its divisors is an integer number (1628430).

Almost surely, 2^15968816 is an apocalyptic number.

15968816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15968816 is an abundant number, since it is smaller than the sum of its proper divisors (16599784).

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

15968816 is a wasteful number, since it uses less digits than its factorization.

15968816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52556 (or 52550 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 15968816 is about 3996.1000988464. The cubic root of 15968816 is about 251.8203977678.

The spelling of 15968816 in words is "fifteen million, nine hundred sixty-eight thousand, eight hundred sixteen".