244120135500 is a `hidden beast` number, since 2 + 4 + 4 + 1 + 20 + 135 + 500 = 666.
It is an unprimeable number.
Almost surely, 2244120135500 is an apocalyptic number.
244120135500 is a gapful number since it is divisible by the number (20) 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 244120135500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405606801600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
244120135500 is a wasteful number, since it uses less digits than its factorization.
244120135500 is an evil number, because the sum of its binary digits is even.
Adding to 244120135500 its reverse (5531021442), we get a palindrome (249651156942).
The spelling of 244120135500 in words is "two hundred forty-four billion, one hundred twenty million, one hundred thirty-five thousand, five hundred".