63355944960 has 1360 divisors, whose sum is σ = 292323981312. Its totient is φ = 12740198400.

The previous prime is 63355944943. The next prime is 63355944979. The reversal of 63355944960 is 6944955336.

63355944960 is a `hidden beast` number, since 6 + 3 + 3 + 5 + 594 + 49 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 63355944897 and 63355944906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2043740145 + ... + 2043740175.

Almost surely, 2^63355944960 is an apocalyptic number.

63355944960 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 63355944960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146161990656).

63355944960 is an abundant number, since it is smaller than the sum of its proper divisors (228968036352).

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

63355944960 is an equidigital number, since it uses as much as digits as its factorization.

63355944960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 54.

The spelling of 63355944960 in words is "sixty-three billion, three hundred fifty-five million, nine hundred forty-four thousand, nine hundred sixty".