12015433652 has 12 divisors (see below), whose sum is σ = 21058920960. Its totient is φ = 5998599096.

The previous prime is 12015433631. The next prime is 12015433667. The reversal of 12015433652 is 25633451021.

It is a happy number.

It is a super-2 number, since 2×12015433652² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2276468 + ... + 2281739.

It is an arithmetic number, because the mean of its divisors is an integer number (1754910080).

Almost surely, 2^12015433652 is an apocalyptic number.

It is an amenable number.

12015433652 is a deficient number, since it is larger than the sum of its proper divisors (9043487308).

12015433652 is a wasteful number, since it uses less digits than its factorization.

12015433652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558870 (or 4558868 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 12015433652 its reverse (25633451021), we get a palindrome (37648884673).

The spelling of 12015433652 in words is "twelve billion, fifteen million, four hundred thirty-three thousand, six hundred fifty-two".