66134573 has 8 divisors (see below), whose sum is σ = 73710720. Its totient is φ = 58968000.

The previous prime is 66134507. The next prime is 66134597. The reversal of 66134573 is 37543166.

66134573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66134573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66134273) 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 7 ways as a sum of consecutive naturals, for example, 102053 + ... + 102698.

It is an arithmetic number, because the mean of its divisors is an integer number (9213840).

Almost surely, 2^66134573 is an apocalyptic number.

It is an amenable number.

66134573 is a deficient number, since it is larger than the sum of its proper divisors (7576147).

66134573 is a wasteful number, since it uses less digits than its factorization.

66134573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204787.

The product of its digits is 45360, while the sum is 35.

The square root of 66134573 is about 8132.3165826227. The cubic root of 66134573 is about 404.3984831648.

The spelling of 66134573 in words is "sixty-six million, one hundred thirty-four thousand, five hundred seventy-three".