18552240000 has 800 divisors, whose sum is σ = 79040636400. Its totient is φ = 4230144000.

The previous prime is 18552239987. The next prime is 18552240023. The reversal of 18552240000 is 4225581.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (800).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 45359796 + ... + 45360204.

Almost surely, 2^18552240000 is an apocalyptic number.

18552240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18552240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39520318200).

18552240000 is an abundant number, since it is smaller than the sum of its proper divisors (60488396400).

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

18552240000 is an frugal number, since it uses more digits than its factorization.

18552240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 18552240000 its reverse (4225581), we get a palindrome (18556465581).

It can be divided in two parts, 185522 and 40000, that added together give a palindrome (225522).

The spelling of 18552240000 in words is "eighteen billion, five hundred fifty-two million, two hundred forty thousand".