6491601163 has 2 divisors, whose sum is σ = 6491601164. Its totient is φ = 6491601162.

The previous prime is 6491601119. The next prime is 6491601187. The reversal of 6491601163 is 3611061946.

6491601163 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6491601163 - 2¹³ = 6491592971 is a prime.

It is not a weakly prime, because it can be changed into another prime (6491601563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3245800581 + 3245800582.

It is an arithmetic number, because the mean of its divisors is an integer number (3245800582).

Almost surely, 2^6491601163 is an apocalyptic number.

6491601163 is a deficient number, since it is larger than the sum of its proper divisors (1).

6491601163 is an equidigital number, since it uses as much as digits as its factorization.

6491601163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 6491601163 is about 80570.4732702992. The cubic root of 6491601163 is about 1865.4514177749.

The spelling of 6491601163 in words is "six billion, four hundred ninety-one million, six hundred one thousand, one hundred sixty-three".