660224244 has 24 divisors (see below), whose sum is σ = 1543907008. Its totient is φ = 219591360.

The previous prime is 660224239. The next prime is 660224317. The reversal of 660224244 is 442422066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54712 + ... + 65679.

Almost surely, 2^660224244 is an apocalyptic number.

It is an amenable number.

660224244 is an abundant number, since it is smaller than the sum of its proper divisors (883682764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660224244 is a wasteful number, since it uses less digits than its factorization.

660224244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120855 (or 120853 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 660224244 is about 25694.8291296128. The cubic root of 660224244 is about 870.7573640150.

The spelling of 660224244 in words is "six hundred sixty million, two hundred twenty-four thousand, two hundred forty-four".