3660221306 has 24 divisors (see below), whose sum is σ = 6392144160. Its totient is φ = 1567332312.

The previous prime is 3660221293. The next prime is 3660221317. The reversal of 3660221306 is 6031220663.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104585 + ... + 135123.

It is an arithmetic number, because the mean of its divisors is an integer number (266339340).

Almost surely, 2^3660221306 is an apocalyptic number.

3660221306 is a deficient number, since it is larger than the sum of its proper divisors (2731922854).

3660221306 is a wasteful number, since it uses less digits than its factorization.

3660221306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31778 (or 31771 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3660221306 is about 60499.7628590394. The cubic root of 3660221306 is about 1541.1176047166.

Adding to 3660221306 its reverse (6031220663), we get a palindrome (9691441969).

The spelling of 3660221306 in words is "three billion, six hundred sixty million, two hundred twenty-one thousand, three hundred six".