16684338848 has 72 divisors (see below), whose sum is σ = 33524857044. Its totient is φ = 8173383680.

The previous prime is 16684338829. The next prime is 16684338887. The reversal of 16684338848 is 84883348661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15828659344 + 855679504 = 125812^2 + 29252^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47264240 + ... + 47264592.

Almost surely, 2^16684338848 is an apocalyptic number.

It is an amenable number.

16684338848 is an abundant number, since it is smaller than the sum of its proper divisors (16840518196).

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

16684338848 is an equidigital number, since it uses as much as digits as its factorization.

16684338848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 719 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 59.

The spelling of 16684338848 in words is "sixteen billion, six hundred eighty-four million, three hundred thirty-eight thousand, eight hundred forty-eight".