18055252224 has 54 divisors (see below), whose sum is σ = 52057749926. Its totient is φ = 6018416640.

The previous prime is 18055252223. The next prime is 18055252253. The reversal of 18055252224 is 42225255081.

18055252224 is a `hidden beast` number, since 1 + 80 + 5 + 52 + 522 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13271040000 + 4784212224 = 115200^2 + 69168^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18055252223) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3915937 + ... + 3920544.

Almost surely, 2^18055252224 is an apocalyptic number.

It is an amenable number.

18055252224 is an abundant number, since it is smaller than the sum of its proper divisors (34002497702).

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

18055252224 is an equidigital number, since it uses as much as digits as its factorization.

18055252224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836503 (or 7836486 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The spelling of 18055252224 in words is "eighteen billion, fifty-five million, two hundred fifty-two thousand, two hundred twenty-four".