18335166685 has 16 divisors (see below), whose sum is σ = 24005626560. Its totient is φ = 13332874240.

The previous prime is 18335166653. The next prime is 18335166697. The reversal of 18335166685 is 58666153381.

It is not a de Polignac number, because 18335166685 - 2⁵ = 18335166653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500349 + ... + 535741.

It is an arithmetic number, because the mean of its divisors is an integer number (1500351660).

Almost surely, 2^18335166685 is an apocalyptic number.

It is an amenable number.

18335166685 is a deficient number, since it is larger than the sum of its proper divisors (5670459875).

18335166685 is a wasteful number, since it uses less digits than its factorization.

18335166685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44828.

The product of its digits is 3110400, while the sum is 52.

The spelling of 18335166685 in words is "eighteen billion, three hundred thirty-five million, one hundred sixty-six thousand, six hundred eighty-five".