66339463 has 2 divisors, whose sum is σ = 66339464. Its totient is φ = 66339462.

The previous prime is 66339439. The next prime is 66339467. The reversal of 66339463 is 36493366.

66339463 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 66339463 - 2¹³ = 66331271 is a prime.

It is a super-2 number, since 2×66339463² = 8801848702256738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66339467) 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, 33169731 + 33169732.

It is an arithmetic number, because the mean of its divisors is an integer number (33169732).

Almost surely, 2^66339463 is an apocalyptic number.

66339463 is a deficient number, since it is larger than the sum of its proper divisors (1).

66339463 is an equidigital number, since it uses as much as digits as its factorization.

66339463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 40.

The square root of 66339463 is about 8144.9041123883. The cubic root of 66339463 is about 404.8156718475.

The spelling of 66339463 in words is "sixty-six million, three hundred thirty-nine thousand, four hundred sixty-three".