6605775066 has 32 divisors (see below), whose sum is σ = 14420564928. Its totient is φ = 2000643840.

The previous prime is 6605774971. The next prime is 6605775067.

6605775066 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6605775067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96900 + ... + 150336.

It is an arithmetic number, because the mean of its divisors is an integer number (450642654).

Almost surely, 2^6605775066 is an apocalyptic number.

6605775066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6605775066 is an abundant number, since it is smaller than the sum of its proper divisors (7814789862).

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

6605775066 is a wasteful number, since it uses less digits than its factorization.

6605775066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55326.

The product of its (nonzero) digits is 1587600, while the sum is 48.

The square root of 6605775066 is about 81275.9193488453. The cubic root of 6605775066 is about 1876.3244038798.

The spelling of 6605775066 in words is "six billion, six hundred five million, seven hundred seventy-five thousand, sixty-six".