8281066500 has 288 divisors, whose sum is σ = 30070989312. Its totient is φ = 1879200000.

The previous prime is 8281066489. The next prime is 8281066501. The reversal of 8281066500 is 56601828.

It is a happy number.

8281066500 is a `hidden beast` number, since 82 + 8 + 10 + 66 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8281066501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4755630 + ... + 4757370.

Almost surely, 2^8281066500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8281066500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15035494656).

8281066500 is an abundant number, since it is smaller than the sum of its proper divisors (21789922812).

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

8281066500 is a wasteful number, since it uses less digits than its factorization.

8281066500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 8281066500 is about 91000.3653838818. The cubic root of 8281066500 is about 2023.1531400809.

The spelling of 8281066500 in words is "eight billion, two hundred eighty-one million, sixty-six thousand, five hundred".