16699683309 has 16 divisors (see below), whose sum is σ = 22829131584. Its totient is φ = 10852150400.

The previous prime is 16699683277. The next prime is 16699683311. The reversal of 16699683309 is 90338699661.

It is a cyclic number.

It is not a de Polignac number, because 16699683309 - 2⁵ = 16699683277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16699682309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84679 + ... + 201419.

It is an arithmetic number, because the mean of its divisors is an integer number (1426820724).

Almost surely, 2^16699683309 is an apocalyptic number.

It is an amenable number.

16699683309 is a deficient number, since it is larger than the sum of its proper divisors (6129448275).

16699683309 is a wasteful number, since it uses less digits than its factorization.

16699683309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117948.

The product of its (nonzero) digits is 11337408, while the sum is 60.

The spelling of 16699683309 in words is "sixteen billion, six hundred ninety-nine million, six hundred eighty-three thousand, three hundred nine".