8666115072 has 44 divisors (see below), whose sum is σ = 23098364376. Its totient is φ = 2888704000.

The previous prime is 8666115011. The next prime is 8666115079. The reversal of 8666115072 is 2705116668.

It is a super-2 number, since 2×8666115072² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8666115079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407429 + ... + 1413572.

Almost surely, 2^8666115072 is an apocalyptic number.

It is an amenable number.

8666115072 is an abundant number, since it is smaller than the sum of its proper divisors (14432249304).

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

8666115072 is a wasteful number, since it uses less digits than its factorization.

8666115072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821024 (or 2821006 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 8666115072 is about 93091.9710393974. The cubic root of 8666115072 is about 2054.0364706482.

The spelling of 8666115072 in words is "eight billion, six hundred sixty-six million, one hundred fifteen thousand, seventy-two".