8663466240 has 576 divisors, whose sum is σ = 36138574080. Its totient is φ = 1937571840.

The previous prime is 8663466239. The next prime is 8663466247. The reversal of 8663466240 is 426643668.

8663466240 is a `hidden beast` number, since 8 + 6 + 634 + 6 + 6 + 2 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8663466247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4941204 + ... + 4942956.

It is an arithmetic number, because the mean of its divisors is an integer number (62740580).

Almost surely, 2^8663466240 is an apocalyptic number.

8663466240 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 8663466240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18069287040).

8663466240 is an abundant number, since it is smaller than the sum of its proper divisors (27475107840).

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

8663466240 is a wasteful number, since it uses less digits than its factorization.

8663466240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The square root of 8663466240 is about 93077.7429893957. The cubic root of 8663466240 is about 2053.8271745597.

The spelling of 8663466240 in words is "eight billion, six hundred sixty-three million, four hundred sixty-six thousand, two hundred forty".