6663223665041 has 2 divisors, whose sum is σ = 6663223665042. Its totient is φ = 6663223665040.

The previous prime is 6663223664989. The next prime is 6663223665139. The reversal of 6663223665041 is 1405663223666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6614026650625 + 49197014416 = 2571775^2 + 221804^2 .

It is a cyclic number.

It is not a de Polignac number, because 6663223665041 - 2¹⁰ = 6663223664017 is a prime.

It is a super-2 number, since 2×6663223665041² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6663223665841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331611832520 + 3331611832521.

It is an arithmetic number, because the mean of its divisors is an integer number (3331611832521).

Almost surely, 2^{6663223665041} is an apocalyptic number.

It is an amenable number.

6663223665041 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663223665041 is an equidigital number, since it uses as much as digits as its factorization.

6663223665041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 50.

The spelling of 6663223665041 in words is "six trillion, six hundred sixty-three billion, two hundred twenty-three million, six hundred sixty-five thousand, forty-one".