165106263 has 16 divisors (see below), whose sum is σ = 252148736. Its totient is φ = 94137120.

The previous prime is 165106241. The next prime is 165106267. The reversal of 165106263 is 362601561.

It is not a de Polignac number, because 165106263 - 2⁵ = 165106231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165106263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165106267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233 + ... + 18213.

It is an arithmetic number, because the mean of its divisors is an integer number (15759296).

Almost surely, 2^165106263 is an apocalyptic number.

165106263 is a deficient number, since it is larger than the sum of its proper divisors (87042473).

165106263 is a wasteful number, since it uses less digits than its factorization.

165106263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17454.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 165106263 is about 12849.3681945845. The cubic root of 165106263 is about 548.5983738140.

The spelling of 165106263 in words is "one hundred sixty-five million, one hundred six thousand, two hundred sixty-three".