265166 has 16 divisors (see below), whose sum is σ = 460080. Its totient is φ = 113280.

The previous prime is 265163. The next prime is 265169. The reversal of 265166 is 661562.

265166 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (265163) and next prime (265169).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 265166.

It is not an unprimeable number, because it can be changed into a prime (265163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 728.

It is an arithmetic number, because the mean of its divisors is an integer number (28755).

2²⁶⁵¹⁶⁶ is an apocalyptic number.

265166 is a deficient number, since it is larger than the sum of its proper divisors (194914).

265166 is a wasteful number, since it uses less digits than its factorization.

265166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its digits is 2160, while the sum is 26.

The square root of 265166 is about 514.9427152606. The cubic root of 265166 is about 64.2449919638.

The spelling of 265166 in words is "two hundred sixty-five thousand, one hundred sixty-six".