8222666365 has 4 divisors (see below), whose sum is σ = 9867199644. Its totient is φ = 6578133088.

The previous prime is 8222666329. The next prime is 8222666371. The reversal of 8222666365 is 5636662228.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4553820324 + 3668846041 = 67482^2 + 60571^2 .

It is a cyclic number.

It is not a de Polignac number, because 8222666365 - 2²¹ = 8220569213 is a prime.

It is a super-2 number, since 2×8222666365² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822266632 + ... + 822266641.

It is an arithmetic number, because the mean of its divisors is an integer number (2466799911).

Almost surely, 2^8222666365 is an apocalyptic number.

It is an amenable number.

8222666365 is a deficient number, since it is larger than the sum of its proper divisors (1644533279).

8222666365 is a wasteful number, since it uses less digits than its factorization.

8222666365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644533278.

The product of its digits is 1244160, while the sum is 46.

The square root of 8222666365 is about 90678.9190771482. The cubic root of 8222666365 is about 2018.3859901592.

The spelling of 8222666365 in words is "eight billion, two hundred twenty-two million, six hundred sixty-six thousand, three hundred sixty-five".