66226330 has 32 divisors (see below), whose sum is σ = 121654224. Its totient is φ = 25952256.

The previous prime is 66226319. The next prime is 66226333. The reversal of 66226330 is 3362266.

66226330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 48762289 + 17464041 = 6983^2 + 4179^2 .

It is not an unprimeable number, because it can be changed into a prime (66226333) 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, 187434 + ... + 187786.

Almost surely, 2^66226330 is an apocalyptic number.

66226330 is a deficient number, since it is larger than the sum of its proper divisors (55427894).

66226330 is a wasteful number, since it uses less digits than its factorization.

66226330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 66226330 is about 8137.9561316095. The cubic root of 66226330 is about 404.5854214147.

Adding to 66226330 its reverse (3362266), we get a palindrome (69588596).

The spelling of 66226330 in words is "sixty-six million, two hundred twenty-six thousand, three hundred thirty".