20245526560 has 96 divisors (see below), whose sum is σ = 54691580160. Its totient is φ = 6937684992.

The previous prime is 20245526549. The next prime is 20245526563. The reversal of 20245526560 is 6562554202.

It is not an unprimeable number, because it can be changed into a prime (20245526563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2961226 + ... + 2968054.

It is an arithmetic number, because the mean of its divisors is an integer number (569703960).

Almost surely, 2^20245526560 is an apocalyptic number.

20245526560 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 20245526560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27345790080).

20245526560 is an abundant number, since it is smaller than the sum of its proper divisors (34446053600).

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

20245526560 is a wasteful number, since it uses less digits than its factorization.

20245526560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9498 (or 9490 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 20245526560 in words is "twenty billion, two hundred forty-five million, five hundred twenty-six thousand, five hundred sixty".