666310140305 has 8 divisors (see below), whose sum is σ = 799665988992. Its totient is φ = 532985565168.

The previous prime is 666310140299. The next prime is 666310140341. The reversal of 666310140305 is 503041013666.

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-666310140305 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 7771487 + ... + 7856756.

It is an arithmetic number, because the mean of its divisors is an integer number (99958248624).

Almost surely, 2^666310140305 is an apocalyptic number.

It is an amenable number.

666310140305 is a deficient number, since it is larger than the sum of its proper divisors (133355848687).

666310140305 is a wasteful number, since it uses less digits than its factorization.

666310140305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15636775.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 666310140305 in words is "six hundred sixty-six billion, three hundred ten million, one hundred forty thousand, three hundred five".