18765164196 has 135 divisors (see below), whose sum is σ = 51044799351. Its totient is φ = 5812589952.

The previous prime is 18765164167. The next prime is 18765164207. The reversal of 18765164196 is 69146156781.

The square root of 18765164196 is 136986.

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

18765164196 is a `hidden beast` number, since 1 + 87 + 6 + 516 + 41 + 9 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5823826596 + 12941337600 = 76314^2 + 113760^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 237533685 + ... + 237533763.

Almost surely, 2^18765164196 is an apocalyptic number.

18765164196 is the 136986-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18765164196

18765164196 is an abundant number, since it is smaller than the sum of its proper divisors (32279635155).

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

18765164196 is an frugal number, since it uses more digits than its factorization.

18765164196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 101 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 18765164196 in words is "eighteen billion, seven hundred sixty-five million, one hundred sixty-four thousand, one hundred ninety-six".