20352112644504 has 64 divisors (see below), whose sum is σ = 51860777264640. Its totient is φ = 6653405982080.

The previous prime is 20352112644491. The next prime is 20352112644509. The reversal of 20352112644504 is 40544621125302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352112644509) 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, 58609 + ... + 6380255.

It is an arithmetic number, because the mean of its divisors is an integer number (810324644760).

Almost surely, 2^{20352112644504} is an apocalyptic number.

20352112644504 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 20352112644504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25930388632320).

20352112644504 is an abundant number, since it is smaller than the sum of its proper divisors (31508664620136).

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

20352112644504 is a wasteful number, since it uses less digits than its factorization.

20352112644504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6324240 (or 6324236 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 20352112644504 its reverse (40544621125302), we get a palindrome (60896733769806).

The spelling of 20352112644504 in words is "twenty trillion, three hundred fifty-two billion, one hundred twelve million, six hundred forty-four thousand, five hundred four".