18668683336 has 16 divisors (see below), whose sum is σ = 35109537840. Its totient is φ = 9306139920.

The previous prime is 18668683303. The next prime is 18668683337. The reversal of 18668683336 is 63338686681.

It is not an unprimeable number, because it can be changed into a prime (18668683337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522406 + ... + 3527701.

It is an arithmetic number, because the mean of its divisors is an integer number (2194346115).

Almost surely, 2^18668683336 is an apocalyptic number.

It is an amenable number.

18668683336 is a deficient number, since it is larger than the sum of its proper divisors (16440854504).

18668683336 is a wasteful number, since it uses less digits than its factorization.

18668683336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050444 (or 7050440 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 58.

The spelling of 18668683336 in words is "eighteen billion, six hundred sixty-eight million, six hundred eighty-three thousand, three hundred thirty-six".