8663841285120 has 1056 divisors, whose sum is σ = 35765184000000. Its totient is φ = 1969961140224.

The previous prime is 8663841285109. The next prime is 8663841285137. The reversal of 8663841285120 is 215821483668.

8663841285120 is a `hidden beast` number, since 8 + 6 + 63 + 8 + 41 + 28 + 512 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1733112381 + ... + 1733117379.

Almost surely, 2^{8663841285120} is an apocalyptic number.

8663841285120 is a gapful number since it is divisible by the number (80) 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 8663841285120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17882592000000).

8663841285120 is an abundant number, since it is smaller than the sum of its proper divisors (27101342714880).

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

8663841285120 is a wasteful number, since it uses less digits than its factorization.

8663841285120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 8663841285120 in words is "eight trillion, six hundred sixty-three billion, eight hundred forty-one million, two hundred eighty-five thousand, one hundred twenty".