8066645384 has 96 divisors (see below), whose sum is σ = 18739664280. Its totient is φ = 3234502656.

The previous prime is 8066645381. The next prime is 8066645449. The reversal of 8066645384 is 4835466608.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7990572100 + 76073284 = 89390^2 + 8722^2 .

It is not an unprimeable number, because it can be changed into a prime (8066645381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1149374 + ... + 1156370.

Almost surely, 2^8066645384 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 8066645384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9369832140).

8066645384 is an abundant number, since it is smaller than the sum of its proper divisors (10673018896).

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

8066645384 is a wasteful number, since it uses less digits than its factorization.

8066645384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207 (or 7196 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The square root of 8066645384 is about 89814.5054208951. The cubic root of 8066645384 is about 2005.5384307352.

The spelling of 8066645384 in words is "eight billion, sixty-six million, six hundred forty-five thousand, three hundred eighty-four".