20799528288 has 576 divisors, whose sum is σ = 74595354624. Its totient is φ = 4947148800.

The previous prime is 20799528283. The next prime is 20799528289. The reversal of 20799528288 is 88282599702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20799528283) 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, 56674281 + ... + 56674647.

It is an arithmetic number, because the mean of its divisors is an integer number (129505824).

Almost surely, 2^20799528288 is an apocalyptic number.

20799528288 is a gapful number since it is divisible by the number (28) 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 20799528288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37297677312).

20799528288 is an abundant number, since it is smaller than the sum of its proper divisors (53795826336).

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

20799528288 is a wasteful number, since it uses less digits than its factorization.

20799528288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 60.

The spelling of 20799528288 in words is "twenty billion, seven hundred ninety-nine million, five hundred twenty-eight thousand, two hundred eighty-eight".