12664387309100 has 36 divisors (see below), whose sum is σ = 27563268666024. Its totient is φ = 5050722996480.

The previous prime is 12664387309099. The next prime is 12664387309141. The reversal of 12664387309100 is 190378346621.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 187865222 + ... + 187932621.

It is an arithmetic number, because the mean of its divisors is an integer number (765646351834).

Almost surely, 2^{12664387309100} is an apocalyptic number.

12664387309100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12664387309100 is an abundant number, since it is smaller than the sum of its proper divisors (14898881356924).

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

12664387309100 is a wasteful number, since it uses less digits than its factorization.

12664387309100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375798194 (or 375798187 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 12664387309100 in words is "twelve trillion, six hundred sixty-four billion, three hundred eighty-seven million, three hundred nine thousand, one hundred".