943666666349 has 24 divisors (see below), whose sum is σ = 1039807534080. Its totient is φ = 855768814560.

The previous prime is 943666666337. The next prime is 943666666357.

943666666349 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 943666666349 - 2¹⁶ = 943666600813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (943666666309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104510567 + ... + 104519595.

It is an arithmetic number, because the mean of its divisors is an integer number (43325313920).

Almost surely, 2^943666666349 is an apocalyptic number.

It is an amenable number.

943666666349 is a deficient number, since it is larger than the sum of its proper divisors (96140867731).

943666666349 is a wasteful number, since it uses less digits than its factorization.

943666666349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11081 (or 11070 counting only the distinct ones).

The product of its digits is 544195584, while the sum is 68.

The spelling of 943666666349 in words is "nine hundred forty-three billion, six hundred sixty-six million, six hundred sixty-six thousand, three hundred forty-nine".