2663645063 has 2 divisors, whose sum is σ = 2663645064. Its totient is φ = 2663645062.

The previous prime is 2663645021. The next prime is 2663645071. The reversal of 2663645063 is 3605463662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2663645063 - 2⁶ = 2663644999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2663645063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663645863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331822531 + 1331822532.

It is an arithmetic number, because the mean of its divisors is an integer number (1331822532).

Almost surely, 2^2663645063 is an apocalyptic number.

2663645063 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663645063 is an equidigital number, since it uses as much as digits as its factorization.

2663645063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 41.

The square root of 2663645063 is about 51610.5131053742. The cubic root of 2663645063 is about 1386.1985850079.

The spelling of 2663645063 in words is "two billion, six hundred sixty-three million, six hundred forty-five thousand, sixty-three".