66630321041 has 8 divisors (see below), whose sum is σ = 67375344960. Its totient is φ = 65887728912.

The previous prime is 66630321031. The next prime is 66630321047. The reversal of 66630321041 is 14012303666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66630321041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66630320989 and 66630321007.

It is not an unprimeable number, because it can be changed into a prime (66630321047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552815 + ... + 662468.

It is an arithmetic number, because the mean of its divisors is an integer number (8421918120).

Almost surely, 2^66630321041 is an apocalyptic number.

It is an amenable number.

66630321041 is a deficient number, since it is larger than the sum of its proper divisors (745023919).

66630321041 is a wasteful number, since it uses less digits than its factorization.

66630321041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215895.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 66630321041 in words is "sixty-six billion, six hundred thirty million, three hundred twenty-one thousand, forty-one".