266965 has 8 divisors (see below), whose sum is σ = 324000. Its totient is φ = 211152.

The previous prime is 266957. The next prime is 266971. The reversal of 266965 is 569662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266965 - 2³ = 266957 is a prime.

It is a super-2 number, since 2×266965² = 142540622450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 266965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2²⁶⁶⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

266965 is a deficient number, since it is larger than the sum of its proper divisors (57035).

266965 is a wasteful number, since it uses less digits than its factorization.

266965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611.

The product of its digits is 19440, while the sum is 34.

The square root of 266965 is about 516.6865587569. The cubic root of 266965 is about 64.3899531670.

The spelling of 266965 in words is "two hundred sixty-six thousand, nine hundred sixty-five".