8116568064 has 340 divisors, whose sum is σ = 26644112880. Its totient is φ = 2441871360.

The previous prime is 8116568059. The next prime is 8116568093. The reversal of 8116568064 is 4608656118.

8116568064 is a `hidden beast` number, since 81 + 1 + 6 + 568 + 0 + 6 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58392507 + ... + 58392645.

Almost surely, 2^8116568064 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 8116568064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13322056440).

8116568064 is an abundant number, since it is smaller than the sum of its proper divisors (18527544816).

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

8116568064 is an equidigital number, since it uses as much as digits as its factorization.

8116568064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 8116568064 is about 90091.9977800470. The cubic root of 8116568064 is about 2009.6672026427.

The spelling of 8116568064 in words is "eight billion, one hundred sixteen million, five hundred sixty-eight thousand, sixty-four".