1668056596 has 6 divisors (see below), whose sum is σ = 2919099050. Its totient is φ = 834028296.

The previous prime is 1668056591. The next prime is 1668056617. The reversal of 1668056596 is 6956508661.

It can be written as a sum of positive squares in only one way, i.e., 1172103696 + 495952900 = 34236^2 + 22270^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668056591) 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 as a sum of consecutive naturals, namely, 208507071 + ... + 208507078.

Almost surely, 2^1668056596 is an apocalyptic number.

It is an amenable number.

1668056596 is a deficient number, since it is larger than the sum of its proper divisors (1251042454).

1668056596 is a wasteful number, since it uses less digits than its factorization.

1668056596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417014153 (or 417014151 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 1668056596 is about 40841.8485869580. The cubic root of 1668056596 is about 1185.9605986074.

The spelling of 1668056596 in words is "one billion, six hundred sixty-eight million, fifty-six thousand, five hundred ninety-six".