16637688068 has 12 divisors (see below), whose sum is σ = 29134498512. Its totient is φ = 8313545640.

The previous prime is 16637688019. The next prime is 16637688071. The reversal of 16637688068 is 86088673661.

It is a junction number, because it is equal to n+sod(n) for n = 16637687998 and 16637688016.

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, 1317530 + ... + 1330097.

It is an arithmetic number, because the mean of its divisors is an integer number (2427874876).

Almost surely, 2^16637688068 is an apocalyptic number.

It is an amenable number.

16637688068 is a deficient number, since it is larger than the sum of its proper divisors (12496810444).

16637688068 is a wasteful number, since it uses less digits than its factorization.

16637688068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649202 (or 2649200 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 16637688068 in words is "sixteen billion, six hundred thirty-seven million, six hundred eighty-eight thousand, sixty-eight".