8671855680 has 224 divisors, whose sum is σ = 31580206080. Its totient is φ = 2237829120.

The previous prime is 8671855667. The next prime is 8671855697. The reversal of 8671855680 is 865581768.

8671855680 is a `hidden beast` number, since 8 + 6 + 7 + 1 + 8 + 556 + 80 = 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 31 ways as a sum of consecutive naturals, for example, 251652 + ... + 284028.

Almost surely, 2^8671855680 is an apocalyptic number.

8671855680 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 8671855680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15790103040).

8671855680 is an abundant number, since it is smaller than the sum of its proper divisors (22908350400).

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

8671855680 is a wasteful number, since it uses less digits than its factorization.

8671855680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32434 (or 32418 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The square root of 8671855680 is about 93122.7989270082. The cubic root of 8671855680 is about 2054.4899154899.

The spelling of 8671855680 in words is "eight billion, six hundred seventy-one million, eight hundred fifty-five thousand, six hundred eighty".