16880816 has 20 divisors (see below), whose sum is σ = 34428600. Its totient is φ = 7996032.

The previous prime is 16880803. The next prime is 16880839. The reversal of 16880816 is 61808861.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 16880816.

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, 27461 + ... + 28068.

It is an arithmetic number, because the mean of its divisors is an integer number (1721430).

Almost surely, 2^16880816 is an apocalyptic number.

16880816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16880816 is an abundant number, since it is smaller than the sum of its proper divisors (17547784).

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

16880816 is a wasteful number, since it uses less digits than its factorization.

16880816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55556 (or 55550 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 16880816 is about 4108.6270212810. The cubic root of 16880816 is about 256.5258559357.

The spelling of 16880816 in words is "sixteen million, eight hundred eighty thousand, eight hundred sixteen".