6566962696643 has 2 divisors, whose sum is σ = 6566962696644. Its totient is φ = 6566962696642.

The previous prime is 6566962696621. The next prime is 6566962696667. The reversal of 6566962696643 is 3466962696656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6566962696643 - 2⁸ = 6566962696387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6566962698643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283481348321 + 3283481348322.

It is an arithmetic number, because the mean of its divisors is an integer number (3283481348322).

Almost surely, 2^{6566962696643} is an apocalyptic number.

6566962696643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6566962696643 is an equidigital number, since it uses as much as digits as its factorization.

6566962696643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2720977920, while the sum is 74.

The spelling of 6566962696643 in words is "six trillion, five hundred sixty-six billion, nine hundred sixty-two million, six hundred ninety-six thousand, six hundred forty-three".