8269206161 has 2 divisors, whose sum is σ = 8269206162. Its totient is φ = 8269206160.

The previous prime is 8269206137. The next prime is 8269206217. The reversal of 8269206161 is 1616029628.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6533650561 + 1735555600 = 80831^2 + 41660^2 .

It is a cyclic number.

It is not a de Polignac number, because 8269206161 - 2¹⁸ = 8268944017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8269206761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4134603080 + 4134603081.

It is an arithmetic number, because the mean of its divisors is an integer number (4134603081).

Almost surely, 2^8269206161 is an apocalyptic number.

It is an amenable number.

8269206161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8269206161 is an equidigital number, since it uses as much as digits as its factorization.

8269206161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 8269206161 is about 90935.1755977850. The cubic root of 8269206161 is about 2022.1868093653.

The spelling of 8269206161 in words is "eight billion, two hundred sixty-nine million, two hundred six thousand, one hundred sixty-one".