16668334835 has 4 divisors (see below), whose sum is σ = 20002001808. Its totient is φ = 13334667864.

The previous prime is 16668334819. The next prime is 16668334861. The reversal of 16668334835 is 53843386661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16668334835 - 2⁴ = 16668334819 is a prime.

It is a Duffinian 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, 1666833479 + ... + 1666833488.

It is an arithmetic number, because the mean of its divisors is an integer number (5000500452).

Almost surely, 2^16668334835 is an apocalyptic number.

16668334835 is a deficient number, since it is larger than the sum of its proper divisors (3333666973).

16668334835 is an equidigital number, since it uses as much as digits as its factorization.

16668334835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333666972.

The product of its digits is 7464960, while the sum is 53.

The spelling of 16668334835 in words is "sixteen billion, six hundred sixty-eight million, three hundred thirty-four thousand, eight hundred thirty-five".