6823222561 has 8 divisors (see below), whose sum is σ = 7255599624. Its totient is φ = 6394291200.

The previous prime is 6823222531. The next prime is 6823222579. The reversal of 6823222561 is 1652223286.

It can be written as a sum of positive squares in 4 ways, for example, as 364046400 + 6459176161 = 19080^2 + 80369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6823222561 - 2¹⁹ = 6822698273 is a prime.

It is a super-2 number, since 2×6823222561² = 93112732233878797442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6823222561.

It is not an unprimeable number, because it can be changed into a prime (6823222531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857340 + ... + 865261.

It is an arithmetic number, because the mean of its divisors is an integer number (906949953).

Almost surely, 2^6823222561 is an apocalyptic number.

It is an amenable number.

6823222561 is a deficient number, since it is larger than the sum of its proper divisors (432377063).

6823222561 is a wasteful number, since it uses less digits than its factorization.

6823222561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722851.

The product of its digits is 69120, while the sum is 37.

The square root of 6823222561 is about 82602.7999585970. The cubic root of 6823222561 is about 1896.6906900747.

The spelling of 6823222561 in words is "six billion, eight hundred twenty-three million, two hundred twenty-two thousand, five hundred sixty-one".