66338 has 8 divisors (see below), whose sum is σ = 102060. Its totient is φ = 32320.

The previous prime is 66337. The next prime is 66343. The reversal of 66338 is 83366.

It can be written as a sum of positive squares in 2 ways, for example, as 66049 + 289 = 257^2 + 17^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323 + ... + 486.

2⁶⁶³³⁸ is an apocalyptic number.

66338 is a deficient number, since it is larger than the sum of its proper divisors (35722).

66338 is a wasteful number, since it uses less digits than its factorization.

66338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852.

The product of its digits is 2592, while the sum is 26.

The square root of 66338 is about 257.5616431070. The cubic root of 66338 is about 40.4812695993.

It can be divided in two parts, 66 and 338, that added together give a palindrome (404).

The spelling of 66338 in words is "sixty-six thousand, three hundred thirty-eight".