6605555066 has 8 divisors (see below), whose sum is σ = 10809090144. Its totient is φ = 3002525020.

The previous prime is 6605555063. The next prime is 6605555111.

6605555066 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (6605555063) 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 3 ways as a sum of consecutive naturals, for example, 150126230 + ... + 150126273.

It is an arithmetic number, because the mean of its divisors is an integer number (1351136268).

Almost surely, 2^6605555066 is an apocalyptic number.

6605555066 is a deficient number, since it is larger than the sum of its proper divisors (4203535078).

6605555066 is a wasteful number, since it uses less digits than its factorization.

6605555066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300252516.

The product of its (nonzero) digits is 810000, while the sum is 44.

The square root of 6605555066 is about 81274.5659231718. The cubic root of 6605555066 is about 1876.3035738260.

It can be divided in two parts, 66055 and 55066, that added together give a palindrome (121121).

The spelling of 6605555066 in words is "six billion, six hundred five million, five hundred fifty-five thousand, sixty-six".