66343330 has 32 divisors (see below), whose sum is σ = 123596928. Its totient is φ = 25622400.

The previous prime is 66343309. The next prime is 66343337. The reversal of 66343330 is 3334366.

66343330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66343337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41445 + ... + 43015.

It is an arithmetic number, because the mean of its divisors is an integer number (3862404).

Almost surely, 2^66343330 is an apocalyptic number.

66343330 is a deficient number, since it is larger than the sum of its proper divisors (57253598).

66343330 is a wasteful number, since it uses less digits than its factorization.

66343330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722.

The product of its (nonzero) digits is 11664, while the sum is 28.

The square root of 66343330 is about 8145.1414966224. The cubic root of 66343330 is about 404.8235374111.

Adding to 66343330 its reverse (3334366), we get a palindrome (69677696).

It can be divided in two parts, 66 and 343330, that added together give a square (343396 = 586²).

The spelling of 66343330 in words is "sixty-six million, three hundred forty-three thousand, three hundred thirty".