666386107353 has 16 divisors (see below), whose sum is σ = 987819816000. Its totient is φ = 443995892640.

The previous prime is 666386107339. The next prime is 666386107463. The reversal of 666386107353 is 353701683666.

It is a happy number.

It is not a de Polignac number, because 666386107353 - 2⁴ = 666386107337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 666386107353.

It is not an unprimeable number, because it can be changed into a prime (666346107353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7217508 + ... + 7309253.

It is an arithmetic number, because the mean of its divisors is an integer number (61738738500).

Almost surely, 2^666386107353 is an apocalyptic number.

It is an amenable number.

666386107353 is a deficient number, since it is larger than the sum of its proper divisors (321433708647).

666386107353 is a wasteful number, since it uses less digits than its factorization.

666386107353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14528469 (or 14528463 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 666386107353 in words is "six hundred sixty-six billion, three hundred eighty-six million, one hundred seven thousand, three hundred fifty-three".