12235005644 has 12 divisors (see below), whose sum is σ = 21417954600. Its totient is φ = 6115590048.

The previous prime is 12235005623. The next prime is 12235005649. The reversal of 12235005644 is 44650053221.

It is a self number, because there is not a number n which added to its sum of digits gives 12235005644.

It is not an unprimeable number, because it can be changed into a prime (12235005649) 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, 463754 + ... + 489425.

It is an arithmetic number, because the mean of its divisors is an integer number (1784829550).

Almost surely, 2^12235005644 is an apocalyptic number.

It is an amenable number.

12235005644 is a deficient number, since it is larger than the sum of its proper divisors (9182948956).

12235005644 is a wasteful number, since it uses less digits than its factorization.

12235005644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956392 (or 956390 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 12235005644 its reverse (44650053221), we get a palindrome (56885058865).

The spelling of 12235005644 in words is "twelve billion, two hundred thirty-five million, five thousand, six hundred forty-four".