6506666560 has 112 divisors (see below), whose sum is σ = 15791907456. Its totient is φ = 2553126912.

The previous prime is 6506666549. The next prime is 6506666591. The reversal of 6506666560 is 656666056.

It is a self number, because there is not a number n which added to its sum of digits gives 6506666560.

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, 3723607 + ... + 3725353.

Almost surely, 2^6506666560 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 6506666560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7895953728).

6506666560 is an abundant number, since it is smaller than the sum of its proper divisors (9285240896).

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

6506666560 is a wasteful number, since it uses less digits than its factorization.

6506666560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The square root of 6506666560 is about 80663.9111375093. The cubic root of 6506666560 is about 1866.8933862944.

The spelling of 6506666560 in words is "six billion, five hundred six million, six hundred sixty-six thousand, five hundred sixty".