66134929 has 16 divisors (see below), whose sum is σ = 77875200. Its totient is φ = 54993744.

The previous prime is 66134923. The next prime is 66135023. The reversal of 66134929 is 92943166.

66134929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 66134929 - 2⁵ = 66134897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66134891 and 66134900.

It is not an unprimeable number, because it can be changed into a prime (66134923) 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 in 15 ways as a sum of consecutive naturals, for example, 31614 + ... + 33640.

It is an arithmetic number, because the mean of its divisors is an integer number (4867200).

Almost surely, 2^66134929 is an apocalyptic number.

It is an amenable number.

66134929 is a deficient number, since it is larger than the sum of its proper divisors (11740271).

66134929 is a wasteful number, since it uses less digits than its factorization.

66134929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172.

The product of its digits is 69984, while the sum is 40.

The square root of 66134929 is about 8132.3384705754. The cubic root of 66134929 is about 404.3992087842.

The spelling of 66134929 in words is "sixty-six million, one hundred thirty-four thousand, nine hundred twenty-nine".