12245566511 has 4 divisors (see below), whose sum is σ = 12272130024. Its totient is φ = 12219003000.

The previous prime is 12245566471. The next prime is 12245566549. The reversal of 12245566511 is 11566554221.

12245566511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11566554221 = 71707 ⋅161303.

It is a cyclic number.

It is not a de Polignac number, because 12245566511 - 2⁶ = 12245566447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12245566211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13281065 + ... + 13281986.

It is an arithmetic number, because the mean of its divisors is an integer number (3068032506).

Almost surely, 2^12245566511 is an apocalyptic number.

12245566511 is a deficient number, since it is larger than the sum of its proper divisors (26563513).

12245566511 is an equidigital number, since it uses as much as digits as its factorization.

12245566511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26563512.

The product of its digits is 72000, while the sum is 38.

The spelling of 12245566511 in words is "twelve billion, two hundred forty-five million, five hundred sixty-six thousand, five hundred eleven".