16824168684 has 36 divisors (see below), whose sum is σ = 43224941760. Its totient is φ = 5516120160.

The previous prime is 16824168661. The next prime is 16824168701. The reversal of 16824168684 is 48686142861.

It is a happy number.

16824168684 is a `hidden beast` number, since 168 + 2 + 416 + 8 + 68 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16824168684.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3828444 + ... + 3832835.

Almost surely, 2^16824168684 is an apocalyptic number.

It is an amenable number.

16824168684 is an abundant number, since it is smaller than the sum of its proper divisors (26400773076).

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

16824168684 is a wasteful number, since it uses less digits than its factorization.

16824168684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661350 (or 7661345 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The spelling of 16824168684 in words is "sixteen billion, eight hundred twenty-four million, one hundred sixty-eight thousand, six hundred eighty-four".