18245552332 has 192 divisors, whose sum is σ = 41576693760. Its totient is φ = 6825772800.

The previous prime is 18245552323. The next prime is 18245552341. The reversal of 18245552332 is 23325554281.

It is an interprime number because it is at equal distance from previous prime (18245552323) and next prime (18245552341).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86471707 + ... + 86471917.

It is an arithmetic number, because the mean of its divisors is an integer number (216545280).

Almost surely, 2^18245552332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18245552332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20788346880).

18245552332 is an abundant number, since it is smaller than the sum of its proper divisors (23331141428).

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

18245552332 is a wasteful number, since it uses less digits than its factorization.

18245552332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 490 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The spelling of 18245552332 in words is "eighteen billion, two hundred forty-five million, five hundred fifty-two thousand, three hundred thirty-two".