165673135465843 has 2 divisors, whose sum is σ = 165673135465844. Its totient is φ = 165673135465842.

The previous prime is 165673135465781. The next prime is 165673135465847. The reversal of 165673135465843 is 348564531376561.

It is a strong prime.

It is an emirp because it is prime and its reverse (348564531376561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165673135465843 - 2¹⁷ = 165673135334771 is a prime.

It is not a weakly prime, because it can be changed into another prime (165673135465847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82836567732921 + 82836567732922.

It is an arithmetic number, because the mean of its divisors is an integer number (82836567732922).

Almost surely, 2^{165673135465843} is an apocalyptic number.

165673135465843 is a deficient number, since it is larger than the sum of its proper divisors (1).

165673135465843 is an equidigital number, since it uses as much as digits as its factorization.

165673135465843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184000, while the sum is 67.

The spelling of 165673135465843 in words is "one hundred sixty-five trillion, six hundred seventy-three billion, one hundred thirty-five million, four hundred sixty-five thousand, eight hundred forty-three".