660785060 has 48 divisors (see below), whose sum is σ = 1504376832. Its totient is φ = 242352000.

The previous prime is 660785033. The next prime is 660785071. The reversal of 660785060 is 60587066.

660785060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30845 + ... + 47675.

It is an arithmetic number, because the mean of its divisors is an integer number (31341184).

Almost surely, 2^660785060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660785060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752188416).

660785060 is an abundant number, since it is smaller than the sum of its proper divisors (843591772).

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

660785060 is a wasteful number, since it uses less digits than its factorization.

660785060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17004 (or 17002 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 660785060 is about 25705.7398259610. The cubic root of 660785060 is about 871.0038441377.

The spelling of 660785060 in words is "six hundred sixty million, seven hundred eighty-five thousand, sixty".