20344113243504 has 120 divisors (see below), whose sum is σ = 57581637789312. Its totient is φ = 6704635374720.

The previous prime is 20344113243479. The next prime is 20344113243527. The reversal of 20344113243504 is 40534231144302.

20344113243504 is a `hidden beast` number, since 2 + 0 + 34 + 4 + 113 + 2 + 4 + 3 + 504 = 666.

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 6437739 + ... + 9062709.

Almost surely, 2^{20344113243504} is an apocalyptic number.

20344113243504 is a gapful number since it is divisible by the number (24) 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 20344113243504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28790818894656).

20344113243504 is an abundant number, since it is smaller than the sum of its proper divisors (37237524545808).

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

20344113243504 is a wasteful number, since it uses less digits than its factorization.

20344113243504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625595 (or 2625586 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 20344113243504 its reverse (40534231144302), we get a palindrome (60878344387806).

The spelling of 20344113243504 in words is "twenty trillion, three hundred forty-four billion, one hundred thirteen million, two hundred forty-three thousand, five hundred four".