4243564020560 has 80 divisors (see below), whose sum is σ = 9934359696000. Its totient is φ = 1685718332928.

The previous prime is 4243564020547. The next prime is 4243564020581. The reversal of 4243564020560 is 650204653424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69904301 + ... + 69964979.

It is an arithmetic number, because the mean of its divisors is an integer number (124179496200).

Almost surely, 2^{4243564020560} is an apocalyptic number.

4243564020560 is a gapful number since it is divisible by the number (40) 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 4243564020560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4967179848000).

4243564020560 is an abundant number, since it is smaller than the sum of its proper divisors (5690795675440).

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

4243564020560 is a wasteful number, since it uses less digits than its factorization.

4243564020560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66708 (or 66702 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 4243564020560 its reverse (650204653424), we get a palindrome (4893768673984).

The spelling of 4243564020560 in words is "four trillion, two hundred forty-three billion, five hundred sixty-four million, twenty thousand, five hundred sixty".