6601728008 has 32 divisors (see below), whose sum is σ = 12894816000. Its totient is φ = 3165065280.

The previous prime is 6601727999. The next prime is 6601728013. The reversal of 6601728008 is 8008271066.

It is a super-2 number, since 2×6601728008² = 87165625383223296128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct 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 7 ways as a sum of consecutive naturals, for example, 95078 + ... + 149141.

It is an arithmetic number, because the mean of its divisors is an integer number (402963000).

Almost surely, 2^6601728008 is an apocalyptic number.

It is an amenable number.

6601728008 is a deficient number, since it is larger than the sum of its proper divisors (6293087992).

6601728008 is a wasteful number, since it uses less digits than its factorization.

6601728008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244365 (or 244361 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 6601728008 is about 81251.0185043855. The cubic root of 6601728008 is about 1875.9411460541.

The spelling of 6601728008 in words is "six billion, six hundred one million, seven hundred twenty-eight thousand, eight".