6648656600 has 24 divisors (see below), whose sum is σ = 15458127060. Its totient is φ = 2659462560.

The previous prime is 6648656579. The next prime is 6648656611. The reversal of 6648656600 is 66568466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16621442 + ... + 16621841.

Almost surely, 2^6648656600 is an apocalyptic number.

It is an amenable number.

6648656600 is an abundant number, since it is smaller than the sum of its proper divisors (8809470460).

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

6648656600 is a wasteful number, since it uses less digits than its factorization.

6648656600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33243299 (or 33243290 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The square root of 6648656600 is about 81539.2948215767. The cubic root of 6648656600 is about 1880.3757171218.

The spelling of 6648656600 in words is "six billion, six hundred forty-eight million, six hundred fifty-six thousand, six hundred".