63551587880 has 64 divisors (see below), whose sum is σ = 156352654080. Its totient is φ = 23055980800.

The previous prime is 63551587837. The next prime is 63551587901. The reversal of 63551587880 is 8878515536.

It is a happy number.

63551587880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 22082 + ... + 357198.

It is an arithmetic number, because the mean of its divisors is an integer number (2443010220).

Almost surely, 2^63551587880 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 63551587880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78176327040).

63551587880 is an abundant number, since it is smaller than the sum of its proper divisors (92801066200).

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

63551587880 is a wasteful number, since it uses less digits than its factorization.

63551587880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335570 (or 335566 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 56.

It can be divided in two parts, 635 and 51587880, that added together give a palindrome (51588515).

The spelling of 63551587880 in words is "sixty-three billion, five hundred fifty-one million, five hundred eighty-seven thousand, eight hundred eighty".