12366135252 has 36 divisors (see below), whose sum is σ = 31262285236. Its totient is φ = 4121591040.

The previous prime is 12366135241. The next prime is 12366135277. The reversal of 12366135252 is 25253166321.

12366135252 is a `hidden beast` number, since 1 + 2 + 36 + 613 + 5 + 2 + 5 + 2 = 666.

12366135252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3355189776 + 9010945476 = 57924^2 + 94926^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 532998 + ... + 555714.

Almost surely, 2^12366135252 is an apocalyptic number.

12366135252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12366135252 is an abundant number, since it is smaller than the sum of its proper divisors (18896149984).

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

12366135252 is a wasteful number, since it uses less digits than its factorization.

12366135252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37848 (or 37843 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 12366135252 in words is "twelve billion, three hundred sixty-six million, one hundred thirty-five thousand, two hundred fifty-two".