162356006509 has 2 divisors, whose sum is σ = 162356006510. Its totient is φ = 162356006508.

The previous prime is 162356006489. The next prime is 162356006521. The reversal of 162356006509 is 905600653261.

162356006509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86155164484 + 76200842025 = 293522^2 + 276045^2 .

It is a cyclic number.

It is not a de Polignac number, because 162356006509 - 2²¹ = 162353909357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162356006609) 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, 81178003254 + 81178003255.

It is an arithmetic number, because the mean of its divisors is an integer number (81178003255).

Almost surely, 2^162356006509 is an apocalyptic number.

It is an amenable number.

162356006509 is a deficient number, since it is larger than the sum of its proper divisors (1).

162356006509 is an equidigital number, since it uses as much as digits as its factorization.

162356006509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 162356006509 in words is "one hundred sixty-two billion, three hundred fifty-six million, six thousand, five hundred nine".