163965290763089 has 2 divisors, whose sum is σ = 163965290763090. Its totient is φ = 163965290763088.

The previous prime is 163965290763077. The next prime is 163965290763097. The reversal of 163965290763089 is 980367092569361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163029689182864 + 935601580225 = 12768308^2 + 967265^2 .

It is a cyclic number.

It is not a de Polignac number, because 163965290763089 - 2²⁴ = 163965273985873 is a prime.

It is not a weakly prime, because it can be changed into another prime (163965290763689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81982645381544 + 81982645381545.

It is an arithmetic number, because the mean of its divisors is an integer number (81982645381545).

Almost surely, 2^{163965290763089} is an apocalyptic number.

It is an amenable number.

163965290763089 is a deficient number, since it is larger than the sum of its proper divisors (1).

163965290763089 is an equidigital number, since it uses as much as digits as its factorization.

163965290763089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793618560, while the sum is 74.

The spelling of 163965290763089 in words is "one hundred sixty-three trillion, nine hundred sixty-five billion, two hundred ninety million, seven hundred sixty-three thousand, eighty-nine".