66364 has 12 divisors (see below), whose sum is σ = 118944. Its totient is φ = 32384.

The previous prime is 66361. The next prime is 66373. The reversal of 66364 is 46366.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66361) 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 3 ways as a sum of consecutive naturals, for example, 12 + ... + 364.

It is an arithmetic number, because the mean of its divisors is an integer number (9912).

2⁶⁶³⁶⁴ is an apocalyptic number.

It is an amenable number.

66364 is a deficient number, since it is larger than the sum of its proper divisors (52580).

66364 is a wasteful number, since it uses less digits than its factorization.

66364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 402 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 66364 is about 257.6121115165. The cubic root of 66364 is about 40.4865575466.

It can be divided in two parts, 663 and 64, that added together give a palindrome (727).

The spelling of 66364 in words is "sixty-six thousand, three hundred sixty-four".