12225053566 has 64 divisors (see below), whose sum is σ = 21515880960. Its totient is φ = 5147868160.

The previous prime is 12225053557. The next prime is 12225053567. The reversal of 12225053566 is 66535052221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225053567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11143530 + ... + 11144626.

It is an arithmetic number, because the mean of its divisors is an integer number (336185640).

Almost surely, 2^12225053566 is an apocalyptic number.

12225053566 is a deficient number, since it is larger than the sum of its proper divisors (9290827394).

12225053566 is a wasteful number, since it uses less digits than its factorization.

12225053566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 12225053566 in words is "twelve billion, two hundred twenty-five million, fifty-three thousand, five hundred sixty-six".