8243666226 has 12 divisors (see below), whose sum is σ = 17861276862. Its totient is φ = 2747888736.

The previous prime is 8243666213. The next prime is 8243666239. The reversal of 8243666226 is 6226663428.

It is an interprime number because it is at equal distance from previous prime (8243666213) and next prime (8243666239).

It can be written as a sum of positive squares in only one way, i.e., 6723836001 + 1519830225 = 81999^2 + 38985^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228990711 + ... + 228990746.

Almost surely, 2^8243666226 is an apocalyptic number.

8243666226 is an abundant number, since it is smaller than the sum of its proper divisors (9617610636).

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

8243666226 is a wasteful number, since it uses less digits than its factorization.

8243666226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457981465 (or 457981462 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 8243666226 is about 90794.6376500286. The cubic root of 8243666226 is about 2020.1027809350.

The spelling of 8243666226 in words is "eight billion, two hundred forty-three million, six hundred sixty-six thousand, two hundred twenty-six".