18168664300 has 36 divisors (see below), whose sum is σ = 39595262616. Its totient is φ = 7236265600.

The previous prime is 18168664279. The next prime is 18168664331. The reversal of 18168664300 is 346686181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366586 + ... + 413185.

It is an arithmetic number, because the mean of its divisors is an integer number (1099868406).

Almost surely, 2^18168664300 is an apocalyptic number.

18168664300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18168664300 is an abundant number, since it is smaller than the sum of its proper divisors (21426598316).

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

18168664300 is a wasteful number, since it uses less digits than its factorization.

18168664300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780018 (or 780011 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 18168664300 in words is "eighteen billion, one hundred sixty-eight million, six hundred sixty-four thousand, three hundred".