66268 has 6 divisors (see below), whose sum is σ = 115976. Its totient is φ = 33132.

The previous prime is 66239. The next prime is 66271. The reversal of 66268 is 86266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

66268 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 8280 + ... + 8287.

2⁶⁶²⁶⁸ is an apocalyptic number.

It is an amenable number.

66268 is a deficient number, since it is larger than the sum of its proper divisors (49708).

66268 is a wasteful number, since it uses less digits than its factorization.

66268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16571 (or 16569 counting only the distinct ones).

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

The square root of 66268 is about 257.4257174410. The cubic root of 66268 is about 40.4670259473.

The spelling of 66268 in words is "sixty-six thousand, two hundred sixty-eight".