12153440052 has 72 divisors (see below), whose sum is σ = 33550433280. Its totient is φ = 3686840640.

The previous prime is 12153440021. The next prime is 12153440053. The reversal of 12153440052 is 25004435121.

12153440052 is a `hidden beast` number, since 1 + 215 + 3 + 440 + 0 + 5 + 2 = 666.

12153440052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12153440052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12153439998 and 12153440025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153440053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149652 + ... + 216107.

It is an arithmetic number, because the mean of its divisors is an integer number (465978240).

Almost surely, 2^12153440052 is an apocalyptic number.

12153440052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12153440052 is an abundant number, since it is smaller than the sum of its proper divisors (21396993228).

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

12153440052 is a wasteful number, since it uses less digits than its factorization.

12153440052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365853 (or 365848 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 12153440052 its reverse (25004435121), we get a palindrome (37157875173).

The spelling of 12153440052 in words is "twelve billion, one hundred fifty-three million, four hundred forty thousand, fifty-two".