63803568960 has 168 divisors, whose sum is σ = 219669314280. Its totient is φ = 16997879808.

The previous prime is 63803568949. The next prime is 63803568973. The reversal of 63803568960 is 6986530836.

It can be written as a sum of positive squares in 4 ways, for example, as 32720468544 + 31083100416 = 180888^2 + 176304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63803568897 and 63803568906.

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, 3137706 + ... + 3157974.

Almost surely, 2^63803568960 is an apocalyptic number.

63803568960 is a gapful number since it is divisible by the number (60) 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 63803568960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109834657140).

63803568960 is an abundant number, since it is smaller than the sum of its proper divisors (155865745320).

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

63803568960 is a wasteful number, since it uses less digits than its factorization.

63803568960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21385 (or 21372 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 63803568960 in words is "sixty-three billion, eight hundred three million, five hundred sixty-eight thousand, nine hundred sixty".