660560016 has 20 divisors (see below), whose sum is σ = 1706446832. Its totient is φ = 220186656.

The previous prime is 660559981. The next prime is 660560029. The reversal of 660560016 is 610065066.

660560016 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 3 ways as a sum of consecutive naturals, for example, 6880786 + ... + 6880881.

Almost surely, 2^660560016 is an apocalyptic number.

It is an amenable number.

660560016 is an abundant number, since it is smaller than the sum of its proper divisors (1045886816).

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

660560016 is a wasteful number, since it uses less digits than its factorization.

660560016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761678 (or 13761672 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 660560016 is about 25701.3621428904. The cubic root of 660560016 is about 870.9049534608.

The spelling of 660560016 in words is "six hundred sixty million, five hundred sixty thousand, sixteen".