66673399998 has 32 divisors (see below), whose sum is σ = 136496676096. Its totient is φ = 21699857088.

The previous prime is 66673399889. The next prime is 66673400051. The reversal of 66673399998 is 89999337666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 700090 + ... + 789602.

It is an arithmetic number, because the mean of its divisors is an integer number (4265521128).

Almost surely, 2^66673399998 is an apocalyptic number.

66673399998 is an abundant number, since it is smaller than the sum of its proper divisors (69823276098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66673399998 is a wasteful number, since it uses less digits than its factorization.

66673399998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92448.

The product of its digits is 714256704, while the sum is 75.

The spelling of 66673399998 in words is "sixty-six billion, six hundred seventy-three million, three hundred ninety-nine thousand, nine hundred ninety-eight".