16990331068 has 12 divisors (see below), whose sum is σ = 29734706232. Its totient is φ = 8494700720.

The previous prime is 16990331023. The next prime is 16990331093. The reversal of 16990331068 is 86013309961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26218 + ... + 186193.

It is an arithmetic number, because the mean of its divisors is an integer number (2477892186).

Almost surely, 2^16990331068 is an apocalyptic number.

It is an amenable number.

16990331068 is a deficient number, since it is larger than the sum of its proper divisors (12744375164).

16990331068 is a wasteful number, since it uses less digits than its factorization.

16990331068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232412 (or 232410 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 16990331068 in words is "sixteen billion, nine hundred ninety million, three hundred thirty-one thousand, sixty-eight".