20003422013440 has 192 divisors, whose sum is σ = 48843569436480. Its totient is φ = 7860479262720.

The previous prime is 20003422013429. The next prime is 20003422013447. The reversal of 20003422013440 is 4431022430002.

It is a happy number.

20003422013440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (20003422013447) 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, 516557919 + ... + 516596641.

It is an arithmetic number, because the mean of its divisors is an integer number (254393590815).

Almost surely, 2^{20003422013440} is an apocalyptic number.

20003422013440 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 20003422013440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24421784718240).

20003422013440 is an abundant number, since it is smaller than the sum of its proper divisors (28840147423040).

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

20003422013440 is an equidigital number, since it uses as much as digits as its factorization.

20003422013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39638 (or 39618 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20003422013440 its reverse (4431022430002), we get a palindrome (24434444443442).

The spelling of 20003422013440 in words is "twenty trillion, three billion, four hundred twenty-two million, thirteen thousand, four hundred forty".