4245445663 has 2 divisors, whose sum is σ = 4245445664. Its totient is φ = 4245445662.

The previous prime is 4245445661. The next prime is 4245445667. The reversal of 4245445663 is 3665445424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4245445663 - 2¹ = 4245445661 is a prime.

Together with 4245445661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4245445661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122722831 + 2122722832.

It is an arithmetic number, because the mean of its divisors is an integer number (2122722832).

Almost surely, 2^4245445663 is an apocalyptic number.

4245445663 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245445663 is an equidigital number, since it uses as much as digits as its factorization.

4245445663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382400, while the sum is 43.

The square root of 4245445663 is about 65157.0845188764. The cubic root of 4245445663 is about 1619.2270944699.

The spelling of 4245445663 in words is "four billion, two hundred forty-five million, four hundred forty-five thousand, six hundred sixty-three".