66004673 has 8 divisors (see below), whose sum is σ = 77867520. Its totient is φ = 54750240.

The previous prime is 66004669. The next prime is 66004709. The reversal of 66004673 is 37640066.

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

It is a cyclic number.

It is not a de Polignac number, because 66004673 - 2² = 66004669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66004073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151868 + ... + 152301.

It is an arithmetic number, because the mean of its divisors is an integer number (9733440).

Almost surely, 2^66004673 is an apocalyptic number.

It is an amenable number.

66004673 is a deficient number, since it is larger than the sum of its proper divisors (11862847).

66004673 is a wasteful number, since it uses less digits than its factorization.

66004673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304207.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66004673 is about 8124.3260028140. The cubic root of 66004673 is about 404.1335395718.

The spelling of 66004673 in words is "sixty-six million, four thousand, six hundred seventy-three".