164327720348333 has 2 divisors, whose sum is σ = 164327720348334. Its totient is φ = 164327720348332.

The previous prime is 164327720348329. The next prime is 164327720348353. The reversal of 164327720348333 is 333843027723461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161395122323044 + 2932598025289 = 12704138^2 + 1712483^2 .

It is a cyclic number.

It is not a de Polignac number, because 164327720348333 - 2² = 164327720348329 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164327720348353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82163860174166 + 82163860174167.

It is an arithmetic number, because the mean of its divisors is an integer number (82163860174167).

Almost surely, 2^{164327720348333} is an apocalyptic number.

It is an amenable number.

164327720348333 is a deficient number, since it is larger than the sum of its proper divisors (1).

164327720348333 is an equidigital number, since it uses as much as digits as its factorization.

164327720348333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36578304, while the sum is 56.

The spelling of 164327720348333 in words is "one hundred sixty-four trillion, three hundred twenty-seven billion, seven hundred twenty million, three hundred forty-eight thousand, three hundred thirty-three".