63556550000 has 120 divisors (see below), whose sum is σ = 154252908432. Its totient is φ = 25367040000.

The previous prime is 63556549997. The next prime is 63556550011. The reversal of 63556550000 is 5565536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28848899 + ... + 28851101.

Almost surely, 2^63556550000 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 63556550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77126454216).

63556550000 is an abundant number, since it is smaller than the sum of its proper divisors (90696358432).

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

63556550000 is an equidigital number, since it uses as much as digits as its factorization.

63556550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 63556550000 in words is "sixty-three billion, five hundred fifty-six million, five hundred fifty thousand".