8388665736 has 96 divisors (see below), whose sum is σ = 23486863680. Its totient is φ = 2494011520.

The previous prime is 8388665713. The next prime is 8388665783. The reversal of 8388665736 is 6375668838.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8388665736.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126661 + ... + 181163.

It is an arithmetic number, because the mean of its divisors is an integer number (244654830).

Almost surely, 2^8388665736 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 8388665736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11743431840).

8388665736 is an abundant number, since it is smaller than the sum of its proper divisors (15098197944).

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

8388665736 is a wasteful number, since it uses less digits than its factorization.

8388665736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54587 (or 54572 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 60.

The square root of 8388665736 is about 91589.6595473528. The cubic root of 8388665736 is about 2031.8780080782.

The spelling of 8388665736 in words is "eight billion, three hundred eighty-eight million, six hundred sixty-five thousand, seven hundred thirty-six".