6605565601 has 8 divisors (see below), whose sum is σ = 6719803200. Its totient is φ = 6491404080.

The previous prime is 6605565503. The next prime is 6605565623. The reversal of 6605565601 is 1065655066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6605565601 - 2¹⁵ = 6605532833 is a prime.

It is a super-2 number, since 2×6605565601² = 87266993818228982402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6605565641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172660 + ... + 207418.

It is an arithmetic number, because the mean of its divisors is an integer number (839975400).

Almost surely, 2^6605565601 is an apocalyptic number.

It is an amenable number.

6605565601 is a deficient number, since it is larger than the sum of its proper divisors (114237599).

6605565601 is a wasteful number, since it uses less digits than its factorization.

6605565601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38039.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 6605565601 is about 81274.6307343196. The cubic root of 6605565601 is about 1876.3045713120.

The spelling of 6605565601 in words is "six billion, six hundred five million, five hundred sixty-five thousand, six hundred one".