20522413242320 has 640 divisors, whose sum is σ = 58500461302272. Its totient is φ = 6608093184000.

The previous prime is 20522413242257. The next prime is 20522413242343. The reversal of 20522413242320 is 2324231422502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2403933092 + ... + 2403941628.

Almost surely, 2^{20522413242320} is an apocalyptic number.

20522413242320 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 20522413242320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29250230651136).

20522413242320 is an abundant number, since it is smaller than the sum of its proper divisors (37978048059952).

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

20522413242320 is a wasteful number, since it uses less digits than its factorization.

20522413242320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759 (or 8753 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 20522413242320 its reverse (2324231422502), we get a palindrome (22846644664822).

The spelling of 20522413242320 in words is "twenty trillion, five hundred twenty-two billion, four hundred thirteen million, two hundred forty-two thousand, three hundred twenty".