8663865266 has 32 divisors (see below), whose sum is σ = 15163217280. Its totient is φ = 3635859456.

The previous prime is 8663865247. The next prime is 8663865269. The reversal of 8663865266 is 6625683668.

It is a super-2 number, since 2×8663865266² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8663865269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191876 + ... + 232688.

It is an arithmetic number, because the mean of its divisors is an integer number (473850540).

Almost surely, 2^8663865266 is an apocalyptic number.

8663865266 is a deficient number, since it is larger than the sum of its proper divisors (6499352014).

8663865266 is a wasteful number, since it uses less digits than its factorization.

8663865266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41138.

The product of its digits is 14929920, while the sum is 56.

The square root of 8663865266 is about 93079.8864739316. The cubic root of 8663865266 is about 2053.8587061214.

The spelling of 8663865266 in words is "eight billion, six hundred sixty-three million, eight hundred sixty-five thousand, two hundred sixty-six".