12636545600 has 168 divisors, whose sum is σ = 35795833920. Its totient is φ = 4300830720.

The previous prime is 12636545563. The next prime is 12636545629. The reversal of 12636545600 is 654563621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1552742 + ... + 1560858.

It is an arithmetic number, because the mean of its divisors is an integer number (213070440).

Almost surely, 2^12636545600 is an apocalyptic number.

12636545600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12636545600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17897916960).

12636545600 is an abundant number, since it is smaller than the sum of its proper divisors (23159288320).

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

12636545600 is a wasteful number, since it uses less digits than its factorization.

12636545600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8285 (or 8270 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 12636545600 in words is "twelve billion, six hundred thirty-six million, five hundred forty-five thousand, six hundred".