16696618909 has 8 divisors (see below), whose sum is σ = 17149885632. Its totient is φ = 16246305600.

The previous prime is 16696618877. The next prime is 16696618921. The reversal of 16696618909 is 90981669661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16696618909 - 2⁵ = 16696618877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16696612909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726892 + ... + 749509.

It is an arithmetic number, because the mean of its divisors is an integer number (2143735704).

Almost surely, 2^16696618909 is an apocalyptic number.

It is an amenable number.

16696618909 is a deficient number, since it is larger than the sum of its proper divisors (453266723).

16696618909 is a wasteful number, since it uses less digits than its factorization.

16696618909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476707.

The product of its (nonzero) digits is 7558272, while the sum is 61.

The spelling of 16696618909 in words is "sixteen billion, six hundred ninety-six million, six hundred eighteen thousand, nine hundred nine".