12321205062066 has 48 divisors (see below), whose sum is σ = 27417859933464. Its totient is φ = 3996007679232.

The previous prime is 12321205062053. The next prime is 12321205062121. The reversal of 12321205062066 is 66026050212321.

12321205062066 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 1 + 20 + 5 + 0 + 620 + 6 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9900644747841 + 2420560314225 = 3146529^2 + 1555815^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12321205062066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86237560 + ... + 86380316.

Almost surely, 2^{12321205062066} is an apocalyptic number.

12321205062066 is an abundant number, since it is smaller than the sum of its proper divisors (15096654871398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12321205062066 is a wasteful number, since it uses less digits than its factorization.

12321205062066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272395 (or 272392 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 12321205062066 its reverse (66026050212321), we get a palindrome (78347255274387).

The spelling of 12321205062066 in words is "twelve trillion, three hundred twenty-one billion, two hundred five million, sixty-two thousand, sixty-six".