20552122080 has 576 divisors, whose sum is σ = 83781734400. Its totient is φ = 4488929280.

The previous prime is 20552122067. The next prime is 20552122081. The reversal of 20552122080 is 8022125502.

20552122080 is a `hidden beast` number, since 2 + 0 + 552 + 12 + 20 + 80 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552122081) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27810351 + ... + 27811089.

It is an arithmetic number, because the mean of its divisors is an integer number (145454400).

Almost surely, 2^20552122080 is an apocalyptic number.

20552122080 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 20552122080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41890867200).

20552122080 is an abundant number, since it is smaller than the sum of its proper divisors (63229612320).

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

20552122080 is a wasteful number, since it uses less digits than its factorization.

20552122080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 20552122080 its reverse (8022125502), we get a palindrome (28574247582).

The spelling of 20552122080 in words is "twenty billion, five hundred fifty-two million, one hundred twenty-two thousand, eighty".