66132739 has 2 divisors, whose sum is σ = 66132740. Its totient is φ = 66132738.

The previous prime is 66132721. The next prime is 66132763. The reversal of 66132739 is 93723166.

66132739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66132739 - 2⁵ = 66132707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66132698 and 66132707.

It is not a weakly prime, because it can be changed into another prime (66132719) 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, 33066369 + 33066370.

It is an arithmetic number, because the mean of its divisors is an integer number (33066370).

Almost surely, 2^66132739 is an apocalyptic number.

66132739 is a deficient number, since it is larger than the sum of its proper divisors (1).

66132739 is an equidigital number, since it uses as much as digits as its factorization.

66132739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 37.

The square root of 66132739 is about 8132.2038218431. The cubic root of 66132739 is about 404.3947449603.

The spelling of 66132739 in words is "sixty-six million, one hundred thirty-two thousand, seven hundred thirty-nine".