266901 has 8 divisors (see below), whose sum is σ = 364320. Its totient is φ = 173712.

The previous prime is 266899. The next prime is 266909. The reversal of 266901 is 109662.

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

It is not a de Polignac number, because 266901 - 2¹ = 266899 is a prime.

It is a super-2 number, since 2×266901² = 142472287602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (45540).

2²⁶⁶⁹⁰¹ is an apocalyptic number.

It is an amenable number.

266901 is a deficient number, since it is larger than the sum of its proper divisors (97419).

266901 is a wasteful number, since it uses less digits than its factorization.

266901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 266901 is about 516.6246219452. The cubic root of 266901 is about 64.3848073159.

The spelling of 266901 in words is "two hundred sixty-six thousand, nine hundred one".