212066266444 has 6 divisors (see below), whose sum is σ = 371115966284. Its totient is φ = 106033133220.

The previous prime is 212066266397. The next prime is 212066266453. The reversal of 212066266444 is 444662660212.

It is a self number, because there is not a number n which added to its sum of digits gives 212066266444.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26508283302 + ... + 26508283309.

Almost surely, 2^212066266444 is an apocalyptic number.

It is an amenable number.

212066266444 is a deficient number, since it is larger than the sum of its proper divisors (159049699840).

212066266444 is a wasteful number, since it uses less digits than its factorization.

212066266444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53016566615 (or 53016566613 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 212066266444 in words is "two hundred twelve billion, sixty-six million, two hundred sixty-six thousand, four hundred forty-four".