266612 has 6 divisors (see below), whose sum is σ = 466578. Its totient is φ = 133304.

The previous prime is 266603. The next prime is 266633. The reversal of 266612 is 216662.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 126736 = 374^2 + 356^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 33323 + ... + 33330.

It is an arithmetic number, because the mean of its divisors is an integer number (77763).

2²⁶⁶⁶¹² is an apocalyptic number.

It is an amenable number.

266612 is a deficient number, since it is larger than the sum of its proper divisors (199966).

266612 is a wasteful number, since it uses less digits than its factorization.

266612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66657 (or 66655 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 266612 is about 516.3448460089. The cubic root of 266612 is about 64.3615603326.

It can be divided in two parts, 266 and 612, that added together give a palindrome (878).

The spelling of 266612 in words is "two hundred sixty-six thousand, six hundred twelve".