663780593379703 has 2 divisors, whose sum is σ = 663780593379704. Its totient is φ = 663780593379702.

The previous prime is 663780593379697. The next prime is 663780593379721. The reversal of 663780593379703 is 307973395087366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663780593379703 - 2²⁹ = 663780056508791 is a prime.

It is a super-2 number, since 2×663780593379703² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 663780593379703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663780593379733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331890296689851 + 331890296689852.

It is an arithmetic number, because the mean of its divisors is an integer number (331890296689852).

Almost surely, 2^{663780593379703} is an apocalyptic number.

663780593379703 is a deficient number, since it is larger than the sum of its proper divisors (1).

663780593379703 is an equidigital number, since it uses as much as digits as its factorization.

663780593379703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240609120, while the sum is 76.

The spelling of 663780593379703 in words is "six hundred sixty-three trillion, seven hundred eighty billion, five hundred ninety-three million, three hundred seventy-nine thousand, seven hundred three".