2663596661203 has 2 divisors, whose sum is σ = 2663596661204. Its totient is φ = 2663596661202.

The previous prime is 2663596661179. The next prime is 2663596661251. The reversal of 2663596661203 is 3021666953662.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2663596661203 - 2¹⁷ = 2663596530131 is a prime.

It is not a weakly prime, because it can be changed into another prime (2663596661263) 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, 1331798330601 + 1331798330602.

It is an arithmetic number, because the mean of its divisors is an integer number (1331798330602).

Almost surely, 2^{2663596661203} is an apocalyptic number.

2663596661203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663596661203 is an equidigital number, since it uses as much as digits as its factorization.

2663596661203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 55.

The spelling of 2663596661203 in words is "two trillion, six hundred sixty-three billion, five hundred ninety-six million, six hundred sixty-one thousand, two hundred three".