66433163 has 2 divisors, whose sum is σ = 66433164. Its totient is φ = 66433162.

The previous prime is 66433123. The next prime is 66433183. The reversal of 66433163 is 36133466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66433163 - 2⁶ = 66433099 is a prime.

It is not a weakly prime, because it can be changed into another prime (66433123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33216581 + 33216582.

It is an arithmetic number, because the mean of its divisors is an integer number (33216582).

Almost surely, 2^66433163 is an apocalyptic number.

66433163 is a deficient number, since it is larger than the sum of its proper divisors (1).

66433163 is an equidigital number, since it uses as much as digits as its factorization.

66433163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 32.

The square root of 66433163 is about 8150.6541455272. The cubic root of 66433163 is about 405.0061737615.

The spelling of 66433163 in words is "sixty-six million, four hundred thirty-three thousand, one hundred sixty-three".