18055359125 has 8 divisors (see below), whose sum is σ = 22533088344. Its totient is φ = 14444287200.

The previous prime is 18055359097. The next prime is 18055359149. The reversal of 18055359125 is 52195355081.

It can be written as a sum of positive squares in 4 ways, for example, as 4701707761 + 13353651364 = 68569^2 + 115558^2 .

It is not a de Polignac number, because 18055359125 - 2⁶ = 18055359061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72221312 + ... + 72221561.

It is an arithmetic number, because the mean of its divisors is an integer number (2816636043).

Almost surely, 2^18055359125 is an apocalyptic number.

It is an amenable number.

18055359125 is a deficient number, since it is larger than the sum of its proper divisors (4477729219).

18055359125 is an equidigital number, since it uses as much as digits as its factorization.

18055359125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144442888 (or 144442878 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 44.

The spelling of 18055359125 in words is "eighteen billion, fifty-five million, three hundred fifty-nine thousand, one hundred twenty-five".