66673393750 has 24 divisors (see below), whose sum is σ = 125004624192. Its totient is φ = 26669355000.

The previous prime is 66673393651. The next prime is 66673393751. The reversal of 66673393750 is 5739337666.

It is a junction number, because it is equal to n+sod(n) for n = 66673393691 and 66673393700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66673393751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5327622 + ... + 5340121.

It is an arithmetic number, because the mean of its divisors is an integer number (5208526008).

Almost surely, 2^66673393750 is an apocalyptic number.

66673393750 is a deficient number, since it is larger than the sum of its proper divisors (58331230442).

66673393750 is an equidigital number, since it uses as much as digits as its factorization.

66673393750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667770 (or 10667750 counting only the distinct ones).

The product of its (nonzero) digits is 12859560, while the sum is 55.

The spelling of 66673393750 in words is "sixty-six billion, six hundred seventy-three million, three hundred ninety-three thousand, seven hundred fifty".