6606645064 has 8 divisors (see below), whose sum is σ = 12387459510. Its totient is φ = 3303322528.

The previous prime is 6606645037. The next prime is 6606645103. The reversal of 6606645064 is 4605466066.

It can be written as a sum of positive squares in only one way, i.e., 4919900164 + 1686744900 = 70142^2 + 41070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 6606645064.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412915309 + ... + 412915324.

Almost surely, 2^6606645064 is an apocalyptic number.

It is an amenable number.

6606645064 is a deficient number, since it is larger than the sum of its proper divisors (5780814446).

6606645064 is a wasteful number, since it uses less digits than its factorization.

6606645064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825830639 (or 825830635 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 6606645064 is about 81281.2712991129. The cubic root of 6606645064 is about 1876.4067725549.

The spelling of 6606645064 in words is "six billion, six hundred six million, six hundred forty-five thousand, sixty-four".