12662215230061 has 4 divisors (see below), whose sum is σ = 12673800057532. Its totient is φ = 12650630402592.

The previous prime is 12662215230053. The next prime is 12662215230073. The reversal of 12662215230061 is 16003251226621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9508373109225 + 3153842120836 = 3083565^2 + 1775906^2 .

It is a cyclic number.

It is not a de Polignac number, because 12662215230061 - 2³ = 12662215230053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12662215230061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662215230031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5792412096 + ... + 5792414281.

It is an arithmetic number, because the mean of its divisors is an integer number (3168450014383).

Almost surely, 2^{12662215230061} is an apocalyptic number.

It is an amenable number.

12662215230061 is a deficient number, since it is larger than the sum of its proper divisors (11584827471).

12662215230061 is a wasteful number, since it uses less digits than its factorization.

12662215230061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11584827470.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 12662215230061 its reverse (16003251226621), we get a palindrome (28665466456682).

The spelling of 12662215230061 in words is "twelve trillion, six hundred sixty-two billion, two hundred fifteen million, two hundred thirty thousand, sixty-one".