165486263 has 2 divisors, whose sum is σ = 165486264. Its totient is φ = 165486262.

The previous prime is 165486227. The next prime is 165486271. The reversal of 165486263 is 362684561.

It is a strong prime.

It is an emirp because it is prime and its reverse (362684561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165486263 - 2¹⁸ = 165224119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165486263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165486203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82743131 + 82743132.

It is an arithmetic number, because the mean of its divisors is an integer number (82743132).

Almost surely, 2^165486263 is an apocalyptic number.

165486263 is a deficient number, since it is larger than the sum of its proper divisors (1).

165486263 is an equidigital number, since it uses as much as digits as its factorization.

165486263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 165486263 is about 12864.1464155225. The cubic root of 165486263 is about 549.0189265132.

The spelling of 165486263 in words is "one hundred sixty-five million, four hundred eighty-six thousand, two hundred sixty-three".