20568480000 has 360 divisors, whose sum is σ = 69460990368. Its totient is φ = 5400576000.

The previous prime is 20568479989. The next prime is 20568480029. The reversal of 20568480000 is 8486502.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35039707 + ... + 35040293.

Almost surely, 2^20568480000 is an apocalyptic number.

20568480000 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 20568480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34730495184).

20568480000 is an abundant number, since it is smaller than the sum of its proper divisors (48892510368).

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

20568480000 is an frugal number, since it uses more digits than its factorization.

20568480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 20568480000 in words is "twenty billion, five hundred sixty-eight million, four hundred eighty thousand".