6541566608 has 20 divisors (see below), whose sum is σ = 12969037488. Its totient is φ = 3194718240.

The previous prime is 6541566599. The next prime is 6541566631. The reversal of 6541566608 is 8066651456.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4753358 + ... + 4754733.

Almost surely, 2^6541566608 is an apocalyptic number.

It is an amenable number.

6541566608 is a deficient number, since it is larger than the sum of its proper divisors (6427470880).

6541566608 is a wasteful number, since it uses less digits than its factorization.

6541566608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508142 (or 9508136 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 6541566608 is about 80879.9518298571. The cubic root of 6541566608 is about 1870.2252779395.

The spelling of 6541566608 in words is "six billion, five hundred forty-one million, five hundred sixty-six thousand, six hundred eight".