165169142045711 has 2 divisors, whose sum is σ = 165169142045712. Its totient is φ = 165169142045710.

The previous prime is 165169142045707. The next prime is 165169142045729. The reversal of 165169142045711 is 117540241961561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165169142045711 - 2² = 165169142045707 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165169102045711) 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, 82584571022855 + 82584571022856.

It is an arithmetic number, because the mean of its divisors is an integer number (82584571022856).

Almost surely, 2^{165169142045711} is an apocalyptic number.

165169142045711 is a deficient number, since it is larger than the sum of its proper divisors (1).

165169142045711 is an equidigital number, since it uses as much as digits as its factorization.

165169142045711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 165169142045711 in words is "one hundred sixty-five trillion, one hundred sixty-nine billion, one hundred forty-two million, forty-five thousand, seven hundred eleven".