165055161611017 has 2 divisors, whose sum is σ = 165055161611018. Its totient is φ = 165055161611016.

The previous prime is 165055161610991. The next prime is 165055161611051. The reversal of 165055161611017 is 710116161550561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110238744287296 + 54816417323721 = 10499464^2 + 7403811^2 .

It is a cyclic number.

It is not a de Polignac number, because 165055161611017 - 2¹⁵ = 165055161578249 is a prime.

It is not a weakly prime, because it can be changed into another prime (165055161611077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82527580805508 + 82527580805509.

It is an arithmetic number, because the mean of its divisors is an integer number (82527580805509).

Almost surely, 2^{165055161611017} is an apocalyptic number.

It is an amenable number.

165055161611017 is a deficient number, since it is larger than the sum of its proper divisors (1).

165055161611017 is an equidigital number, since it uses as much as digits as its factorization.

165055161611017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 46.

The spelling of 165055161611017 in words is "one hundred sixty-five trillion, fifty-five billion, one hundred sixty-one million, six hundred eleven thousand, seventeen".