931666668693 has 16 divisors (see below), whose sum is σ = 1251761176512. Its totient is φ = 616342064000.

The previous prime is 931666668683. The next prime is 931666668701. The reversal of 931666668693 is 396866666139.

It is a cyclic number.

It is not a de Polignac number, because 931666668693 - 2¹⁰ = 931666667669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (931666668613) 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, 12358033 + ... + 12433193.

It is an arithmetic number, because the mean of its divisors is an integer number (78235073532).

Almost surely, 2^931666668693 is an apocalyptic number.

It is an amenable number.

931666668693 is a deficient number, since it is larger than the sum of its proper divisors (320094507819).

931666668693 is a wasteful number, since it uses less digits than its factorization.

931666668693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106836.

The product of its digits is 272097792, while the sum is 69.

The spelling of 931666668693 in words is "nine hundred thirty-one billion, six hundred sixty-six million, six hundred sixty-eight thousand, six hundred ninety-three".