12651066252 has 72 divisors (see below), whose sum is σ = 35206451280. Its totient is φ = 3798472320.

The previous prime is 12651066251. The next prime is 12651066271. The reversal of 12651066252 is 25266015621.

12651066252 is a `hidden beast` number, since 1 + 26 + 5 + 1 + 0 + 6 + 625 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12651066251) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 103383 + ... + 189710.

It is an arithmetic number, because the mean of its divisors is an integer number (488978490).

Almost surely, 2^12651066252 is an apocalyptic number.

12651066252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12651066252 is an abundant number, since it is smaller than the sum of its proper divisors (22555385028).

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

12651066252 is a wasteful number, since it uses less digits than its factorization.

12651066252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293223 (or 293218 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12651066252 in words is "twelve billion, six hundred fifty-one million, sixty-six thousand, two hundred fifty-two".