66132719 has 2 divisors, whose sum is σ = 66132720. Its totient is φ = 66132718.

The previous prime is 66132707. The next prime is 66132721. The reversal of 66132719 is 91723166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66132719 - 2⁸ = 66132463 is a prime.

It is a super-2 number, since 2×66132719² = 8747073044665922, which contains 22 as substring.

Together with 66132721, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66132739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33066359 + 33066360.

It is an arithmetic number, because the mean of its divisors is an integer number (33066360).

Almost surely, 2^66132719 is an apocalyptic number.

66132719 is a deficient number, since it is larger than the sum of its proper divisors (1).

66132719 is an equidigital number, since it uses as much as digits as its factorization.

66132719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 66132719 is about 8132.2025921641. The cubic root of 66132719 is about 404.3947041943.

The spelling of 66132719 in words is "sixty-six million, one hundred thirty-two thousand, seven hundred nineteen".