65406163 has 2 divisors, whose sum is σ = 65406164. Its totient is φ = 65406162.

The previous prime is 65406127. The next prime is 65406169. The reversal of 65406163 is 36160456.

65406163 is digitally balanced in base 2, 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 65406163 - 2⁹ = 65405651 is a prime.

It is not a weakly prime, because it can be changed into another prime (65406169) 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 as a sum of consecutive naturals, namely, 32703081 + 32703082.

It is an arithmetic number, because the mean of its divisors is an integer number (32703082).

Almost surely, 2^65406163 is an apocalyptic number.

65406163 is a deficient number, since it is larger than the sum of its proper divisors (1).

65406163 is an equidigital number, since it uses as much as digits as its factorization.

65406163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 65406163 is about 8087.4076810805. The cubic root of 65406163 is about 402.9083093435.

The spelling of 65406163 in words is "sixty-five million, four hundred six thousand, one hundred sixty-three".