16863806668 has 12 divisors (see below), whose sum is σ = 31064907160. Its totient is φ = 7988118912.

The previous prime is 16863806657. The next prime is 16863806717. The reversal of 16863806668 is 86660836861.

16863806668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110946021 + ... + 110946172.

Almost surely, 2^16863806668 is an apocalyptic number.

It is an amenable number.

16863806668 is a deficient number, since it is larger than the sum of its proper divisors (14201100492).

16863806668 is a wasteful number, since it uses less digits than its factorization.

16863806668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221892216 (or 221892214 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 16863806668 in words is "sixteen billion, eight hundred sixty-three million, eight hundred six thousand, six hundred sixty-eight".