16800816 has 40 divisors (see below), whose sum is σ = 44465904. Its totient is φ = 5463040.

The previous prime is 16800799. The next prime is 16800821. The reversal of 16800816 is 61800861.

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 7 ways as a sum of consecutive naturals, for example, 2301 + ... + 6236.

Almost surely, 2^16800816 is an apocalyptic number.

16800816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16800816 is an abundant number, since it is smaller than the sum of its proper divisors (27665088).

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

16800816 is a wasteful number, since it uses less digits than its factorization.

16800816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8589 (or 8583 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 16800816 is about 4098.8798469826. The cubic root of 16800816 is about 256.1199795677.

The spelling of 16800816 in words is "sixteen million, eight hundred thousand, eight hundred sixteen".