165066263 has 2 divisors, whose sum is σ = 165066264. Its totient is φ = 165066262.

The previous prime is 165066257. The next prime is 165066283. The reversal of 165066263 is 362660561.

It is a weak prime.

It is an emirp because it is prime and its reverse (362660561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165066263 - 2⁶ = 165066199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165066203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82533131 + 82533132.

It is an arithmetic number, because the mean of its divisors is an integer number (82533132).

Almost surely, 2^165066263 is an apocalyptic number.

165066263 is a deficient number, since it is larger than the sum of its proper divisors (1).

165066263 is an equidigital number, since it uses as much as digits as its factorization.

165066263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 165066263 is about 12847.8116035378. The cubic root of 165066263 is about 548.5540675858.

The spelling of 165066263 in words is "one hundred sixty-five million, sixty-six thousand, two hundred sixty-three".