18263360164 has 63 divisors (see below), whose sum is σ = 37477886593. Its totient is φ = 7787422608.

The previous prime is 18263360123. The next prime is 18263360179. The reversal of 18263360164 is 46106336281.

The square root of 18263360164 is 135142.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17894412900 + 368947264 = 133770^2 + 19208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 92707314 + ... + 92707510.

Almost surely, 2^18263360164 is an apocalyptic number.

18263360164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18263360164 is the 135142-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18263360164

18263360164 is an abundant number, since it is smaller than the sum of its proper divisors (19214526429).

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

18263360164 is an frugal number, since it uses more digits than its factorization.

18263360164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 18263360164 in words is "eighteen billion, two hundred sixty-three million, three hundred sixty thousand, one hundred sixty-four".