6661368604 has 96 divisors (see below), whose sum is σ = 13896610560. Its totient is φ = 2759961600.

The previous prime is 6661368589. The next prime is 6661368611. The reversal of 6661368604 is 4068631666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3055987 + ... + 3058165.

It is an arithmetic number, because the mean of its divisors is an integer number (144756360).

Almost surely, 2^6661368604 is an apocalyptic number.

It is an amenable number.

6661368604 is an abundant number, since it is smaller than the sum of its proper divisors (7235241956).

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

6661368604 is a wasteful number, since it uses less digits than its factorization.

6661368604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 6661368604 is about 81617.2077689503. The cubic root of 6661368604 is about 1881.5733588466.

The spelling of 6661368604 in words is "six billion, six hundred sixty-one million, three hundred sixty-eight thousand, six hundred four".