366665819211 has 6 divisors (see below), whose sum is σ = 529628405540. Its totient is φ = 244443879468.

The previous prime is 366665819203. The next prime is 366665819237. The reversal of 366665819211 is 112918566663.

It is not a de Polignac number, because 366665819211 - 2³ = 366665819203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366665819011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20370323281 + ... + 20370323298.

Almost surely, 2^366665819211 is an apocalyptic number.

366665819211 is a deficient number, since it is larger than the sum of its proper divisors (162962586329).

366665819211 is a wasteful number, since it uses less digits than its factorization.

366665819211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740646585 (or 40740646582 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 366665819211 in words is "three hundred sixty-six billion, six hundred sixty-five million, eight hundred nineteen thousand, two hundred eleven".