18004501332 has 18 divisors (see below), whose sum is σ = 45511378458. Its totient is φ = 6001500432.

The previous prime is 18004501303. The next prime is 18004501343. The reversal of 18004501332 is 23310540081.

It is a happy number.

18004501332 is a `hidden beast` number, since 1 + 80 + 0 + 450 + 133 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17965113156 + 39388176 = 134034^2 + 6276^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 18004501296 and 18004501305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250062483 + ... + 250062554.

Almost surely, 2^18004501332 is an apocalyptic number.

18004501332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18004501332 is an abundant number, since it is smaller than the sum of its proper divisors (27506877126).

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

18004501332 is a wasteful number, since it uses less digits than its factorization.

18004501332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500125047 (or 500125042 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 18004501332 in words is "eighteen billion, four million, five hundred one thousand, three hundred thirty-two".