12041265644 has 24 divisors (see below), whose sum is σ = 22339863168. Its totient is φ = 5668945920.

The previous prime is 12041265581. The next prime is 12041265671. The reversal of 12041265644 is 44656214021.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1307669 + ... + 1316844.

It is an arithmetic number, because the mean of its divisors is an integer number (930827632).

Almost surely, 2^12041265644 is an apocalyptic number.

It is an amenable number.

12041265644 is a deficient number, since it is larger than the sum of its proper divisors (10298597524).

12041265644 is a wasteful number, since it uses less digits than its factorization.

12041265644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624585 (or 2624583 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 12041265644 its reverse (44656214021), we get a palindrome (56697479665).

The spelling of 12041265644 in words is "twelve billion, forty-one million, two hundred sixty-five thousand, six hundred forty-four".