16668426935 has 4 divisors (see below), whose sum is σ = 20002112328. Its totient is φ = 13334741544.

The previous prime is 16668426911. The next prime is 16668426953. The reversal of 16668426935 is 53962486661.

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 16668426935 - 2³⁰ = 15594685111 is a prime.

It is a Duffinian number.

It is a congruent 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, 1666842689 + ... + 1666842698.

It is an arithmetic number, because the mean of its divisors is an integer number (5000528082).

Almost surely, 2^16668426935 is an apocalyptic number.

16668426935 is a deficient number, since it is larger than the sum of its proper divisors (3333685393).

16668426935 is an equidigital number, since it uses as much as digits as its factorization.

16668426935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333685392.

The product of its digits is 11197440, while the sum is 56.

The spelling of 16668426935 in words is "sixteen billion, six hundred sixty-eight million, four hundred twenty-six thousand, nine hundred thirty-five".