18166703708 has 12 divisors (see below), whose sum is σ = 31793043072. Its totient is φ = 9082977120.

The previous prime is 18166703699. The next prime is 18166703713. The reversal of 18166703708 is 80730766181.

It is a super-2 number, since 2×18166703708² (a number of 21 digits) contains 22 as substring.

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, 35048 + ... + 193808.

It is an arithmetic number, because the mean of its divisors is an integer number (2649420256).

Almost surely, 2^18166703708 is an apocalyptic number.

It is an amenable number.

18166703708 is a deficient number, since it is larger than the sum of its proper divisors (13626339364).

18166703708 is a wasteful number, since it uses less digits than its factorization.

18166703708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187372 (or 187370 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 18166703708 in words is "eighteen billion, one hundred sixty-six million, seven hundred three thousand, seven hundred eight".