64806163 has 2 divisors, whose sum is σ = 64806164. Its totient is φ = 64806162.

The previous prime is 64806113. The next prime is 64806167. The reversal of 64806163 is 36160846.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64806163 is a prime.

It is not a weakly prime, because it can be changed into another prime (64806167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32403081 + 32403082.

It is an arithmetic number, because the mean of its divisors is an integer number (32403082).

Almost surely, 2^64806163 is an apocalyptic number.

64806163 is a deficient number, since it is larger than the sum of its proper divisors (1).

64806163 is an equidigital number, since it uses as much as digits as its factorization.

64806163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 64806163 is about 8050.2275123129. The cubic root of 64806163 is about 401.6725033347.

The spelling of 64806163 in words is "sixty-four million, eight hundred six thousand, one hundred sixty-three".