12265536000566 has 4 divisors (see below), whose sum is σ = 18398304000852. Its totient is φ = 6132768000282.

The previous prime is 12265536000547. The next prime is 12265536000581. The reversal of 12265536000566 is 66500063556221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12265536000566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3066384000140 + ... + 3066384000143.

It is an arithmetic number, because the mean of its divisors is an integer number (4599576000213).

Almost surely, 2^{12265536000566} is an apocalyptic number.

12265536000566 is a deficient number, since it is larger than the sum of its proper divisors (6132768000286).

12265536000566 is an equidigital number, since it uses as much as digits as its factorization.

12265536000566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132768000285.

The product of its (nonzero) digits is 1944000, while the sum is 47.

Adding to 12265536000566 its reverse (66500063556221), we get a palindrome (78765599556787).

The spelling of 12265536000566 in words is "twelve trillion, two hundred sixty-five billion, five hundred thirty-six million, five hundred sixty-six", and thus it is an aban number.