16850666705 has 16 divisors (see below), whose sum is σ = 21452666880. Its totient is φ = 12670463232.

The previous prime is 16850666689. The next prime is 16850666759. The reversal of 16850666705 is 50766605861.

It is a cyclic number.

It is not a de Polignac number, because 16850666705 - 2⁴ = 16850666689 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686264 + ... + 710393.

It is an arithmetic number, because the mean of its divisors is an integer number (1340791680).

Almost surely, 2^16850666705 is an apocalyptic number.

It is an amenable number.

16850666705 is a deficient number, since it is larger than the sum of its proper divisors (4602000175).

16850666705 is a wasteful number, since it uses less digits than its factorization.

16850666705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396808.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 16850666705 in words is "sixteen billion, eight hundred fifty million, six hundred sixty-six thousand, seven hundred five".