8071613568 has 72 divisors (see below), whose sum is σ = 23235686955. Its totient is φ = 2689521408.

The previous prime is 8071613551. The next prime is 8071613579. The reversal of 8071613568 is 8653161708.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

8071613568 is a `hidden beast` number, since 8 + 0 + 71 + 6 + 13 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4035806784 + 4035806784 = 63528^2 + 63528^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=63528.

It is a super-2 number, since 2×8071613568² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3048021 + ... + 3050667.

Almost surely, 2^8071613568 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 8071613568

8071613568 is an abundant number, since it is smaller than the sum of its proper divisors (15164073387).

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

8071613568 is an frugal number, since it uses more digits than its factorization.

8071613568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 8071613568 is about 89842.1591904380. The cubic root of 8071613568 is about 2005.9500780644.

The spelling of 8071613568 in words is "eight billion, seventy-one million, six hundred thirteen thousand, five hundred sixty-eight".