165166160666033 has 2 divisors, whose sum is σ = 165166160666034. Its totient is φ = 165166160666032.

The previous prime is 165166160666011. The next prime is 165166160666137. The reversal of 165166160666033 is 330666061661561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151073892428944 + 14092268237089 = 12291212^2 + 3753967^2 .

It is an emirp because it is prime and its reverse (330666061661561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165166160666033 - 2⁶ = 165166160665969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165166160666033.

It is not a weakly prime, because it can be changed into another prime (165166160666333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82583080333016 + 82583080333017.

It is an arithmetic number, because the mean of its divisors is an integer number (82583080333017).

Almost surely, 2^{165166160666033} is an apocalyptic number.

It is an amenable number.

165166160666033 is a deficient number, since it is larger than the sum of its proper divisors (1).

165166160666033 is an equidigital number, since it uses as much as digits as its factorization.

165166160666033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 56.

The spelling of 165166160666033 in words is "one hundred sixty-five trillion, one hundred sixty-six billion, one hundred sixty million, six hundred sixty-six thousand, thirty-three".