66326612 has 12 divisors (see below), whose sum is σ = 126623616. Its totient is φ = 30148440.

The previous prime is 66326591. The next prime is 66326647. The reversal of 66326612 is 21662366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753668 + ... + 753755.

It is an arithmetic number, because the mean of its divisors is an integer number (10551968).

Almost surely, 2^66326612 is an apocalyptic number.

It is an amenable number.

66326612 is a deficient number, since it is larger than the sum of its proper divisors (60297004).

66326612 is a wasteful number, since it uses less digits than its factorization.

66326612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507438 (or 1507436 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 66326612 is about 8144.1151760029. The cubic root of 66326612 is about 404.7895304332.

Adding to 66326612 its reverse (21662366), we get a palindrome (87988978).

The spelling of 66326612 in words is "sixty-six million, three hundred twenty-six thousand, six hundred twelve".