20052322301440 has 320 divisors, whose sum is σ = 56552110433280. Its totient is φ = 6722724003840.

The previous prime is 20052322301423. The next prime is 20052322301471. The reversal of 20052322301440 is 4410322325002.

It is a tau number, because it is divible by the number of its divisors (320).

It is a junction number, because it is equal to n+sod(n) for n = 20052322301399 and 20052322301408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307108477 + ... + 307173763.

It is an arithmetic number, because the mean of its divisors is an integer number (176725345104).

Almost surely, 2^{20052322301440} is an apocalyptic number.

20052322301440 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 20052322301440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28276055216640).

20052322301440 is an abundant number, since it is smaller than the sum of its proper divisors (36499788131840).

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

20052322301440 is a wasteful number, since it uses less digits than its factorization.

20052322301440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66173 (or 66157 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 20052322301440 its reverse (4410322325002), we get a palindrome (24462644626442).

The spelling of 20052322301440 in words is "twenty trillion, fifty-two billion, three hundred twenty-two million, three hundred one thousand, four hundred forty".