12135553532 has 48 divisors (see below), whose sum is σ = 21818160000. Its totient is φ = 5904212544.

The previous prime is 12135553523. The next prime is 12135553541. The reversal of 12135553532 is 23535553121.

It is an interprime number because it is at equal distance from previous prime (12135553523) and next prime (12135553541).

It is a junction number, because it is equal to n+sod(n) for n = 12135553492 and 12135553501.

It is a congruent number.

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, 16421219 + ... + 16421957.

It is an arithmetic number, because the mean of its divisors is an integer number (454545000).

Almost surely, 2^12135553532 is an apocalyptic number.

It is an amenable number.

12135553532 is a deficient number, since it is larger than the sum of its proper divisors (9682606468).

12135553532 is a wasteful number, since it uses less digits than its factorization.

12135553532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1416 counting only the distinct ones).

The product of its digits is 67500, while the sum is 35.

The spelling of 12135553532 in words is "twelve billion, one hundred thirty-five million, five hundred fifty-three thousand, five hundred thirty-two".