16816768 has 16 divisors (see below), whose sum is σ = 33502410. Its totient is φ = 8408320.

The previous prime is 16816763. The next prime is 16816769. The reversal of 16816768 is 86761861.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 6110784 = 3272^2 + 2472^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (16816763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65563 + ... + 65818.

Almost surely, 2^16816768 is an apocalyptic number.

It is an amenable number.

16816768 is a deficient number, since it is larger than the sum of its proper divisors (16685642).

16816768 is an equidigital number, since it uses as much as digits as its factorization.

16816768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131395 (or 131383 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 16816768 is about 4100.8252827937. The cubic root of 16816768 is about 256.2010139953.

The spelling of 16816768 in words is "sixteen million, eight hundred sixteen thousand, seven hundred sixty-eight".