663541263223 has 2 divisors, whose sum is σ = 663541263224. Its totient is φ = 663541263222.

The previous prime is 663541263139. The next prime is 663541263257. The reversal of 663541263223 is 322362145366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663541263223 - 2³⁷ = 526102309751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 663541263223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663541273223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331770631611 + 331770631612.

It is an arithmetic number, because the mean of its divisors is an integer number (331770631612).

Almost surely, 2^663541263223 is an apocalyptic number.

663541263223 is a deficient number, since it is larger than the sum of its proper divisors (1).

663541263223 is an equidigital number, since it uses as much as digits as its factorization.

663541263223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 43.

The spelling of 663541263223 in words is "six hundred sixty-three billion, five hundred forty-one million, two hundred sixty-three thousand, two hundred twenty-three".