18718350366 has 16 divisors (see below), whose sum is σ = 38143054224. Its totient is φ = 6121724544.

The previous prime is 18718350359. The next prime is 18718350377. The reversal of 18718350366 is 66305381781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29431051 + ... + 29431686.

It is an arithmetic number, because the mean of its divisors is an integer number (2383940889).

Almost surely, 2^18718350366 is an apocalyptic number.

18718350366 is an abundant number, since it is smaller than the sum of its proper divisors (19424703858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18718350366 is a wasteful number, since it uses less digits than its factorization.

18718350366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58862795.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 18718350366 in words is "eighteen billion, seven hundred eighteen million, three hundred fifty thousand, three hundred sixty-six".