6648656601 has 4 divisors (see below), whose sum is σ = 8864875472. Its totient is φ = 4432437732.

The previous prime is 6648656579. The next prime is 6648656611. The reversal of 6648656601 is 1066568466.

6648656601 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6648656601 - 2⁶ = 6648656537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6648656611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108109431 + ... + 1108109436.

It is an arithmetic number, because the mean of its divisors is an integer number (2216218868).

Almost surely, 2^6648656601 is an apocalyptic number.

It is an amenable number.

6648656601 is a deficient number, since it is larger than the sum of its proper divisors (2216218871).

6648656601 is a wasteful number, since it uses less digits than its factorization.

6648656601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216218870.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 6648656601 is about 81539.2948277087. The cubic root of 6648656601 is about 1880.3757172161.

The spelling of 6648656601 in words is "six billion, six hundred forty-eight million, six hundred fifty-six thousand, six hundred one".