20112145352244 has 144 divisors (see below), whose sum is σ = 56142565262784. Its totient is φ = 6020034585600.

The previous prime is 20112145352183. The next prime is 20112145352251. The reversal of 20112145352244 is 44225354121102.

20112145352244 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 21 + 45 + 352 + 244 = 666.

20112145352244 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 20112145352199 and 20112145352208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12344179 + ... + 13878149.

It is an arithmetic number, because the mean of its divisors is an integer number (389878925436).

Almost surely, 2^{20112145352244} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112145352244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28071282631392).

20112145352244 is an abundant number, since it is smaller than the sum of its proper divisors (36030419910540).

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

20112145352244 is a wasteful number, since it uses less digits than its factorization.

20112145352244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534398 (or 1534393 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 20112145352244 its reverse (44225354121102), we get a palindrome (64337499473346).

The spelling of 20112145352244 in words is "twenty trillion, one hundred twelve billion, one hundred forty-five million, three hundred fifty-two thousand, two hundred forty-four".