63565482880 has 64 divisors (see below), whose sum is σ = 152291573280. Its totient is φ = 25370920960.

The previous prime is 63565482839. The next prime is 63565482947. The reversal of 63565482880 is 8828456536.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×63565482880² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187317 + ... + 402763.

Almost surely, 2^63565482880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63565482880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76145786640).

63565482880 is an abundant number, since it is smaller than the sum of its proper divisors (88726090400).

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

63565482880 is a wasteful number, since it uses less digits than its factorization.

63565482880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215927 (or 215915 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 63565482880 in words is "sixty-three billion, five hundred sixty-five million, four hundred eighty-two thousand, eight hundred eighty".