8666651168 has 54 divisors (see below), whose sum is σ = 19856624823. Its totient is φ = 3712699200.

The previous prime is 8666651159. The next prime is 8666651171. The reversal of 8666651168 is 8611566668.

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.

It can be written as a sum of positive squares in only one way, i.e., 4333325584 + 4333325584 = 65828^2 + 65828^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=65828.

It is a super-2 number, since 2×8666651168² (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, 3685193 + ... + 3687543.

Almost surely, 2^8666651168 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 8666651168

8666651168 is an abundant number, since it is smaller than the sum of its proper divisors (11189973655).

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

8666651168 is an frugal number, since it uses more digits than its factorization.

8666651168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726 (or 2360 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The square root of 8666651168 is about 93094.8503838961. The cubic root of 8666651168 is about 2054.0788248066.

The spelling of 8666651168 in words is "eight billion, six hundred sixty-six million, six hundred fifty-one thousand, one hundred sixty-eight".