6420466206403 has 2 divisors, whose sum is σ = 6420466206404. Its totient is φ = 6420466206402.

The previous prime is 6420466206391. The next prime is 6420466206431. The reversal of 6420466206403 is 3046026640246.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6420466206403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6420466206403.

It is not a weakly prime, because it can be changed into another prime (6420466206433) 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, 3210233103201 + 3210233103202.

It is an arithmetic number, because the mean of its divisors is an integer number (3210233103202).

Almost surely, 2^{6420466206403} is an apocalyptic number.

6420466206403 is a deficient number, since it is larger than the sum of its proper divisors (1).

6420466206403 is an equidigital number, since it uses as much as digits as its factorization.

6420466206403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 6420466206403 in words is "six trillion, four hundred twenty billion, four hundred sixty-six million, two hundred six thousand, four hundred three".