6566960696656 has 20 divisors (see below), whose sum is σ = 12723620541300. Its totient is φ = 3283445718272.

The previous prime is 6566960696651. The next prime is 6566960696657.

6566960696656 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 2086626474256 + 4480334222400 = 1444516^2 + 2116680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6566960696651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564061 + ... + 3667708.

It is an arithmetic number, because the mean of its divisors is an integer number (636181027065).

Almost surely, 2^{6566960696656} is an apocalyptic number.

It is an amenable number.

6566960696656 is a deficient number, since it is larger than the sum of its proper divisors (6156659844644).

6566960696656 is a wasteful number, since it uses less digits than its factorization.

6566960696656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328766 (or 4328760 counting only the distinct ones).

The product of its (nonzero) digits is 3401222400, while the sum is 76.

The spelling of 6566960696656 in words is "six trillion, five hundred sixty-six billion, nine hundred sixty million, six hundred ninety-six thousand, six hundred fifty-six".