660444050 has 144 divisors (see below), whose sum is σ = 1537756488. Its totient is φ = 209664000.

The previous prime is 660444041. The next prime is 660444079. The reversal of 660444050 is 50444066.

It can be written as a sum of positive squares in 12 ways, for example, as 201327721 + 459116329 = 14189^2 + 21427^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4206572 + ... + 4206728.

Almost surely, 2^660444050 is an apocalyptic number.

660444050 is an abundant number, since it is smaller than the sum of its proper divisors (877312438).

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

660444050 is a wasteful number, since it uses less digits than its factorization.

660444050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 660444050 is about 25699.1060155796. The cubic root of 660444050 is about 870.8539859625.

The spelling of 660444050 in words is "six hundred sixty million, four hundred forty-four thousand, fifty".