12033213640 has 64 divisors (see below), whose sum is σ = 31334284800. Its totient is φ = 4073442048.

The previous prime is 12033213637. The next prime is 12033213677. The reversal of 12033213640 is 4631233021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249879 + ... + 294118.

It is an arithmetic number, because the mean of its divisors is an integer number (489598200).

Almost surely, 2^12033213640 is an apocalyptic number.

12033213640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12033213640 is an abundant number, since it is smaller than the sum of its proper divisors (19301071160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12033213640 is a wasteful number, since it uses less digits than its factorization.

12033213640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544094 (or 544090 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12033213640 its reverse (4631233021), we get a palindrome (16664446661).

The spelling of 12033213640 in words is "twelve billion, thirty-three million, two hundred thirteen thousand, six hundred forty".