662775656 has 8 divisors (see below), whose sum is σ = 1242704370. Its totient is φ = 331387824.

The previous prime is 662775649. The next prime is 662775713. The reversal of 662775656 is 656577266.

It can be written as a sum of positive squares in only one way, i.e., 613354756 + 49420900 = 24766^2 + 7030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 41423471 + ... + 41423486.

Almost surely, 2^662775656 is an apocalyptic number.

It is an amenable number.

662775656 is a deficient number, since it is larger than the sum of its proper divisors (579928714).

662775656 is a wasteful number, since it uses less digits than its factorization.

662775656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82846963 (or 82846959 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 50.

The square root of 662775656 is about 25744.4296110829. The cubic root of 662775656 is about 871.8775920256.

The spelling of 662775656 in words is "six hundred sixty-two million, seven hundred seventy-five thousand, six hundred fifty-six".