8666612263 has 4 divisors (see below), whose sum is σ = 8666965840. Its totient is φ = 8666258688.

The previous prime is 8666612261. The next prime is 8666612281. The reversal of 8666612263 is 3622166668.

It is a happy number.

8666612263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8666612263 - 2¹ = 8666612261 is a prime.

It is a super-2 number, since 2×8666612263² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666612261) 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, 137043 + ... + 190036.

It is an arithmetic number, because the mean of its divisors is an integer number (2166741460).

Almost surely, 2^8666612263 is an apocalyptic number.

8666612263 is a deficient number, since it is larger than the sum of its proper divisors (353577).

8666612263 is a wasteful number, since it uses less digits than its factorization.

8666612263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353576.

The product of its digits is 746496, while the sum is 46.

The square root of 8666612263 is about 93094.6414301060. The cubic root of 8666612263 is about 2054.0757511835.

The spelling of 8666612263 in words is "eight billion, six hundred sixty-six million, six hundred twelve thousand, two hundred sixty-three".