165222438859 has 2 divisors, whose sum is σ = 165222438860. Its totient is φ = 165222438858.

The previous prime is 165222438853. The next prime is 165222438889. The reversal of 165222438859 is 958834222561.

165222438859 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 is a cyclic number.

It is not a de Polignac number, because 165222438859 - 2⁹ = 165222438347 is a prime.

It is not a weakly prime, because it can be changed into another prime (165222438853) 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, 82611219429 + 82611219430.

It is an arithmetic number, because the mean of its divisors is an integer number (82611219430).

Almost surely, 2^165222438859 is an apocalyptic number.

165222438859 is a deficient number, since it is larger than the sum of its proper divisors (1).

165222438859 is an equidigital number, since it uses as much as digits as its factorization.

165222438859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8294400, while the sum is 55.

The spelling of 165222438859 in words is "one hundred sixty-five billion, two hundred twenty-two million, four hundred thirty-eight thousand, eight hundred fifty-nine".