656065606 has 24 divisors (see below), whose sum is σ = 1145918880. Its totient is φ = 280888272.

The previous prime is 656065601. The next prime is 656065633. The reversal of 656065606 is 606560656.

It is a happy number.

It is a super-2 number, since 2×656065606² = 860844158752294472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656065601) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 116115 + ... + 121633.

It is an arithmetic number, because the mean of its divisors is an integer number (47746620).

Almost surely, 2^656065606 is an apocalyptic number.

656065606 is a deficient number, since it is larger than the sum of its proper divisors (489853274).

656065606 is a wasteful number, since it uses less digits than its factorization.

656065606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748 (or 6741 counting only the distinct ones).

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

The square root of 656065606 is about 25613.7776596893. Note that the first 3 decimals coincide. The cubic root of 656065606 is about 868.9252620471.

The spelling of 656065606 in words is "six hundred fifty-six million, sixty-five thousand, six hundred six".