12735355666 has 16 divisors (see below), whose sum is σ = 21324318048. Its totient is φ = 5654174400.

The previous prime is 12735355649. The next prime is 12735355667. The reversal of 12735355666 is 66655353721.

12735355666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12735355667) 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 7 ways as a sum of consecutive naturals, for example, 6730215 + ... + 6732106.

It is an arithmetic number, because the mean of its divisors is an integer number (1332769878).

Almost surely, 2^12735355666 is an apocalyptic number.

12735355666 is a deficient number, since it is larger than the sum of its proper divisors (8588962382).

12735355666 is a wasteful number, since it uses less digits than its factorization.

12735355666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13462377.

The product of its digits is 3402000, while the sum is 49.

The spelling of 12735355666 in words is "twelve billion, seven hundred thirty-five million, three hundred fifty-five thousand, six hundred sixty-six".