20568730080 has 192 divisors, whose sum is σ = 66892573440. Its totient is φ = 5309423616.

The previous prime is 20568730073. The next prime is 20568730081. The reversal of 20568730080 is 8003786502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20568730081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2327911 + ... + 2336729.

It is an arithmetic number, because the mean of its divisors is an integer number (348398820).

Almost surely, 2^20568730080 is an apocalyptic number.

20568730080 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 20568730080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33446286720).

20568730080 is an abundant number, since it is smaller than the sum of its proper divisors (46323843360).

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

20568730080 is a wasteful number, since it uses less digits than its factorization.

20568730080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993 (or 8985 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 20568730080 in words is "twenty billion, five hundred sixty-eight million, seven hundred thirty thousand, eighty".