266071 has 8 divisors (see below), whose sum is σ = 290864. Its totient is φ = 241920.

The previous prime is 266059. The next prime is 266081. The reversal of 266071 is 170662.

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

It is a 8-Lehmer number, since φ(266071) divides (266071-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 266071 - 2¹³ = 257879 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266051) 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, 1156 + ... + 1366.

It is an arithmetic number, because the mean of its divisors is an integer number (36358).

2²⁶⁶⁰⁷¹ is an apocalyptic number.

266071 is a deficient number, since it is larger than the sum of its proper divisors (24793).

266071 is a wasteful number, since it uses less digits than its factorization.

266071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 266071 is about 515.8207052843. The cubic root of 266071 is about 64.3179974243.

The spelling of 266071 in words is "two hundred sixty-six thousand, seventy-one".