2065605656 has 16 divisors (see below), whose sum is σ = 3876519600. Its totient is φ = 1031867104.

The previous prime is 2065605637. The next prime is 2065605677. The reversal of 2065605656 is 6565065602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107540 + ... + 125283.

It is an arithmetic number, because the mean of its divisors is an integer number (242282475).

Almost surely, 2^2065605656 is an apocalyptic number.

It is an amenable number.

2065605656 is a deficient number, since it is larger than the sum of its proper divisors (1810913944).

2065605656 is a wasteful number, since it uses less digits than its factorization.

2065605656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233938 (or 233934 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 2065605656 is about 45448.9345969738. The cubic root of 2065605656 is about 1273.5494267599.

The spelling of 2065605656 in words is "two billion, sixty-five million, six hundred five thousand, six hundred fifty-six".