6445048163 has 16 divisors (see below), whose sum is σ = 6702528096. Its totient is φ = 6192910080.

The previous prime is 6445048157. The next prime is 6445048187. The reversal of 6445048163 is 3618405446.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6445048163 - 2⁸ = 6445047907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6445048163.

It is not an unprimeable number, because it can be changed into a prime (6445048133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1319081 + ... + 1323957.

It is an arithmetic number, because the mean of its divisors is an integer number (418908006).

Almost surely, 2^6445048163 is an apocalyptic number.

6445048163 is a deficient number, since it is larger than the sum of its proper divisors (257479933).

6445048163 is a wasteful number, since it uses less digits than its factorization.

6445048163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5414.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 6445048163 is about 80281.0573111740. The cubic root of 6445048163 is about 1860.9814994615.

The spelling of 6445048163 in words is "six billion, four hundred forty-five million, forty-eight thousand, one hundred sixty-three".