18246224112 has 80 divisors (see below), whose sum is σ = 48177487872. Its totient is φ = 5949054720.

The previous prime is 18246224111. The next prime is 18246224131. The reversal of 18246224112 is 21142264281.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18246224111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411738 + ... + 453894.

Almost surely, 2^18246224112 is an apocalyptic number.

18246224112 is a gapful number since it is divisible by the number (12) 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 18246224112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24088743936).

18246224112 is an abundant number, since it is smaller than the sum of its proper divisors (29931263760).

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

18246224112 is a wasteful number, since it uses less digits than its factorization.

18246224112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42366 (or 42360 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

Adding to 18246224112 its reverse (21142264281), we get a palindrome (39388488393).

The spelling of 18246224112 in words is "eighteen billion, two hundred forty-six million, two hundred twenty-four thousand, one hundred twelve".