6641163 has 16 divisors (see below), whose sum is σ = 9891840. Its totient is φ = 4403592.

The previous prime is 6641153. The next prime is 6641177. The reversal of 6641163 is 3611466.

6641163 is a `hidden beast` number, since 6 + 641 + 16 + 3 = 666.

It is not a de Polignac number, because 6641163 - 2⁹ = 6640651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6641143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5470 + ... + 6572.

It is an arithmetic number, because the mean of its divisors is an integer number (618240).

Almost surely, 2^6641163 is an apocalyptic number.

6641163 is a deficient number, since it is larger than the sum of its proper divisors (3250677).

6641163 is a wasteful number, since it uses less digits than its factorization.

6641163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1329 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 6641163 is about 2577.0454012299. The cubic root of 6641163 is about 187.9669003898.

Adding to 6641163 its sum of digits (27), we get a triangular number (6641190 = T₃₆₄₄).

The spelling of 6641163 in words is "six million, six hundred forty-one thousand, one hundred sixty-three".