268066 has 4 divisors (see below), whose sum is σ = 402102. Its totient is φ = 134032.

The previous prime is 268063. The next prime is 268069. The reversal of 268066 is 660862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660862 = 2 ⋅330431.

It is an interprime number because it is at equal distance from previous prime (268063) and next prime (268069).

It can be written as a sum of positive squares in only one way, i.e., 221841 + 46225 = 471^2 + 215^2 .

It is not an unprimeable number, because it can be changed into a prime (268063) 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 as a sum of consecutive naturals, namely, 67015 + ... + 67018.

2²⁶⁸⁰⁶⁶ is an apocalyptic number.

268066 is a deficient number, since it is larger than the sum of its proper divisors (134036).

268066 is a wasteful number, since it uses less digits than its factorization.

268066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134035.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 268066 is about 517.7509053589. The cubic root of 268066 is about 64.4783494027.

The spelling of 268066 in words is "two hundred sixty-eight thousand, sixty-six".