66672319103999 has 6 divisors (see below), whose sum is σ = 77557595692464. Its totient is φ = 57147702089100.

The previous prime is 66672319103977. The next prime is 66672319104109. The reversal of 66672319103999 is 99930191327666.

It is not a de Polignac number, because 66672319103999 - 2⁸ = 66672319103743 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 (66672319103939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 680329786727 + ... + 680329786824.

It is an arithmetic number, because the mean of its divisors is an integer number (12926265948744).

Almost surely, 2^{66672319103999} is an apocalyptic number.

66672319103999 is a deficient number, since it is larger than the sum of its proper divisors (10885276588465).

66672319103999 is a wasteful number, since it uses less digits than its factorization.

66672319103999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360659573565 (or 1360659573558 counting only the distinct ones).

The product of its (nonzero) digits is 178564176, while the sum is 71.

The spelling of 66672319103999 in words is "sixty-six trillion, six hundred seventy-two billion, three hundred nineteen million, one hundred three thousand, nine hundred ninety-nine".