18265695080 has 32 divisors (see below), whose sum is σ = 41113054440. Its totient is φ = 7303568640.

The previous prime is 18265695079. The next prime is 18265695083. The reversal of 18265695080 is 8059656281.

It can be written as a sum of positive squares in 4 ways, for example, as 15646507396 + 2619187684 = 125086^2 + 51178^2 .

It is not an unprimeable number, because it can be changed into a prime (18265695083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26342 + ... + 192938.

Almost surely, 2^18265695080 is an apocalyptic number.

18265695080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18265695080 is an abundant number, since it is smaller than the sum of its proper divisors (22847359360).

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

18265695080 is a wasteful number, since it uses less digits than its factorization.

18265695080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169349 (or 169345 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 18265695080 in words is "eighteen billion, two hundred sixty-five million, six hundred ninety-five thousand, eighty".