20244521434500 has 432 divisors, whose sum is σ = 70221953985456. Its totient is φ = 4906116864000.

The previous prime is 20244521434453. The next prime is 20244521434531. The reversal of 20244521434500 is 543412544202.

20244521434500 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 4 + 5 + 2 + 143 + 4 + 500 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 9140911279236 + 11103610155264 = 3023394^2 + 3332208^2 .

It is a super-2 number, since 2×20244521434500² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2686014732 + ... + 2686022268.

Almost surely, 2^{20244521434500} is an apocalyptic number.

20244521434500 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 20244521434500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35110976992728).

20244521434500 is an abundant number, since it is smaller than the sum of its proper divisors (49977432550956).

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

20244521434500 is a wasteful number, since it uses less digits than its factorization.

20244521434500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12517 (or 12491 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 20244521434500 its reverse (543412544202), we get a palindrome (20787933978702).

The spelling of 20244521434500 in words is "twenty trillion, two hundred forty-four billion, five hundred twenty-one million, four hundred thirty-four thousand, five hundred".