66673400606 has 8 divisors (see below), whose sum is σ = 100013706264. Its totient is φ = 33335498520.

The previous prime is 66673400603. The next prime is 66673400611. The reversal of 66673400606 is 60600437666.

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

It is a super-2 number, since 2×66673400606² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66673400603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529865 + ... + 643508.

It is an arithmetic number, because the mean of its divisors is an integer number (12501713283).

Almost surely, 2^66673400606 is an apocalyptic number.

66673400606 is a deficient number, since it is larger than the sum of its proper divisors (33340305658).

66673400606 is a wasteful number, since it uses less digits than its factorization.

66673400606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201786.

The product of its (nonzero) digits is 653184, while the sum is 44.

The spelling of 66673400606 in words is "sixty-six billion, six hundred seventy-three million, four hundred thousand, six hundred six".