66463379 has 2 divisors, whose sum is σ = 66463380. Its totient is φ = 66463378.

The previous prime is 66463289. The next prime is 66463391. The reversal of 66463379 is 97336466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66463379 - 2¹⁶ = 66397843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66463279) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33231689 + 33231690.

It is an arithmetic number, because the mean of its divisors is an integer number (33231690).

Almost surely, 2^66463379 is an apocalyptic number.

66463379 is a deficient number, since it is larger than the sum of its proper divisors (1).

66463379 is an equidigital number, since it uses as much as digits as its factorization.

66463379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 44.

The square root of 66463379 is about 8152.5075283621. The cubic root of 66463379 is about 405.0675678559.

The spelling of 66463379 in words is "sixty-six million, four hundred sixty-three thousand, three hundred seventy-nine".