822844364161 has 2 divisors, whose sum is σ = 822844364162. Its totient is φ = 822844364160.

The previous prime is 822844364141. The next prime is 822844364201. The reversal of 822844364161 is 161463448228.

822844364161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450690682225 + 372153681936 = 671335^2 + 610044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-822844364161 is a prime.

It is not a weakly prime, because it can be changed into another prime (822844364141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411422182080 + 411422182081.

It is an arithmetic number, because the mean of its divisors is an integer number (411422182081).

Almost surely, 2^822844364161 is an apocalyptic number.

It is an amenable number.

822844364161 is a deficient number, since it is larger than the sum of its proper divisors (1).

822844364161 is an equidigital number, since it uses as much as digits as its factorization.

822844364161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1769472, while the sum is 49.

The spelling of 822844364161 in words is "eight hundred twenty-two billion, eight hundred forty-four million, three hundred sixty-four thousand, one hundred sixty-one".