1395849822161 has 2 divisors, whose sum is σ = 1395849822162. Its totient is φ = 1395849822160.

The previous prime is 1395849822151. The next prime is 1395849822167. The reversal of 1395849822161 is 1612289485931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1394796430225 + 1053391936 = 1181015^2 + 32456^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395849822161 - 2³⁰ = 1394776080337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1395849822161.

It is not a weakly prime, because it can be changed into another prime (1395849822167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697924911080 + 697924911081.

It is an arithmetic number, because the mean of its divisors is an integer number (697924911081).

Almost surely, 2^{1395849822161} is an apocalyptic number.

It is an amenable number.

1395849822161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395849822161 is an equidigital number, since it uses as much as digits as its factorization.

1395849822161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 59.

The spelling of 1395849822161 in words is "one trillion, three hundred ninety-five billion, eight hundred forty-nine million, eight hundred twenty-two thousand, one hundred sixty-one".