1668168479983 has 2 divisors, whose sum is σ = 1668168479984. Its totient is φ = 1668168479982.

The previous prime is 1668168479869. The next prime is 1668168480079. The reversal of 1668168479983 is 3899748618661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1668168479983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1668168779983) 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 as a sum of consecutive naturals, namely, 834084239991 + 834084239992.

It is an arithmetic number, because the mean of its divisors is an integer number (834084239992).

Almost surely, 2^{1668168479983} is an apocalyptic number.

1668168479983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1668168479983 is an equidigital number, since it uses as much as digits as its factorization.

1668168479983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752467968, while the sum is 76.

The spelling of 1668168479983 in words is "one trillion, six hundred sixty-eight billion, one hundred sixty-eight million, four hundred seventy-nine thousand, nine hundred eighty-three".