266716 has 12 divisors (see below), whose sum is σ = 471240. Its totient is φ = 132080.

The previous prime is 266711. The next prime is 266719. The reversal of 266716 is 617662.

It is a super-2 number, since 2×266716² = 142274849312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270 + ... + 778.

It is an arithmetic number, because the mean of its divisors is an integer number (39270).

2²⁶⁶⁷¹⁶ is an apocalyptic number.

It is an amenable number.

266716 is a deficient number, since it is larger than the sum of its proper divisors (204524).

266716 is a wasteful number, since it uses less digits than its factorization.

266716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 642 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 266716 is about 516.4455440799. The cubic root of 266716 is about 64.3699279631.

The spelling of 266716 in words is "two hundred sixty-six thousand, seven hundred sixteen".