6650605606 has 16 divisors (see below), whose sum is σ = 10502553600. Its totient is φ = 3149807688.

The previous prime is 6650605603. The next prime is 6650605607. The reversal of 6650605606 is 6065060566.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650605601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442491 + ... + 457273.

It is an arithmetic number, because the mean of its divisors is an integer number (656409600).

Almost surely, 2^6650605606 is an apocalyptic number.

6650605606 is a deficient number, since it is larger than the sum of its proper divisors (3851947994).

6650605606 is a wasteful number, since it uses less digits than its factorization.

6650605606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26643.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 6650605606 is about 81551.2452755934. The cubic root of 6650605606 is about 1880.5594387227.

It can be divided in two parts, 665060560 and 6, that added together give a palindrome (665060566).

The spelling of 6650605606 in words is "six billion, six hundred fifty million, six hundred five thousand, six hundred six".