18666666835335 has 24 divisors (see below), whose sum is σ = 32356646955360. Its totient is φ = 9955219920192.

The previous prime is 18666666835307. The next prime is 18666666835339. The reversal of 18666666835335 is 53353866666681.

It is not a de Polignac number, because 18666666835335 - 2⁵ = 18666666835303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18666666835339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5642155 + ... + 8316684.

It is an arithmetic number, because the mean of its divisors is an integer number (1348193623140).

Almost surely, 2^{18666666835335} is an apocalyptic number.

18666666835335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18666666835335 is a deficient number, since it is larger than the sum of its proper divisors (13689980120025).

18666666835335 is a wasteful number, since it uses less digits than its factorization.

18666666835335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13988567 (or 13988564 counting only the distinct ones).

The product of its digits is 2015539200, while the sum is 72.

The spelling of 18666666835335 in words is "eighteen trillion, six hundred sixty-six billion, six hundred sixty-six million, eight hundred thirty-five thousand, three hundred thirty-five".