66331928373 has 8 divisors (see below), whose sum is σ = 88492015200. Its totient is φ = 44196563568.

The previous prime is 66331928357. The next prime is 66331928387. The reversal of 66331928373 is 37382913366.

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

It is not a de Polignac number, because 66331928373 - 2⁴ = 66331928357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66331928573) 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, 6174243 + ... + 6184976.

It is an arithmetic number, because the mean of its divisors is an integer number (11061501900).

Almost surely, 2^66331928373 is an apocalyptic number.

It is an amenable number.

66331928373 is a deficient number, since it is larger than the sum of its proper divisors (22160086827).

66331928373 is a wasteful number, since it uses less digits than its factorization.

66331928373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12361011.

The product of its digits is 2939328, while the sum is 51.

The spelling of 66331928373 in words is "sixty-six billion, three hundred thirty-one million, nine hundred twenty-eight thousand, three hundred seventy-three".