664102244 has 24 divisors (see below), whose sum is σ = 1257529728. Its totient is φ = 305051040.

The previous prime is 664102223. The next prime is 664102249. The reversal of 664102244 is 442201466.

It is a happy number.

664102244 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 (664102249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19292 + ... + 41235.

It is an arithmetic number, because the mean of its divisors is an integer number (52397072).

Almost surely, 2^664102244 is an apocalyptic number.

It is an amenable number.

664102244 is a deficient number, since it is larger than the sum of its proper divisors (593427484).

664102244 is a wasteful number, since it uses less digits than its factorization.

664102244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60755 (or 60753 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 664102244 is about 25770.1812954430. The cubic root of 664102244 is about 872.4589106628.

The spelling of 664102244 in words is "six hundred sixty-four million, one hundred two thousand, two hundred forty-four".