16868533668 has 24 divisors (see below), whose sum is σ = 44982756672. Its totient is φ = 4819581024.

The previous prime is 16868533631. The next prime is 16868533711. The reversal of 16868533668 is 86633586861.

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 7 ways as a sum of consecutive naturals, for example, 100407855 + ... + 100408022.

It is an arithmetic number, because the mean of its divisors is an integer number (1874281528).

Almost surely, 2^16868533668 is an apocalyptic number.

It is an amenable number.

16868533668 is an abundant number, since it is smaller than the sum of its proper divisors (28114223004).

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

16868533668 is a wasteful number, since it uses less digits than its factorization.

16868533668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200815891 (or 200815889 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The spelling of 16868533668 in words is "sixteen billion, eight hundred sixty-eight million, five hundred thirty-three thousand, six hundred sixty-eight".