12665654305 has 8 divisors (see below), whose sum is σ = 15199889472. Its totient is φ = 10131787248.

The previous prime is 12665654273. The next prime is 12665654311. The reversal of 12665654305 is 50345656621.

12665654305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12665654305 - 2⁵ = 12665654273 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 9619 + ... + 159448.

It is an arithmetic number, because the mean of its divisors is an integer number (1899986184).

Almost surely, 2^12665654305 is an apocalyptic number.

It is an amenable number.

12665654305 is a deficient number, since it is larger than the sum of its proper divisors (2534235167).

12665654305 is a wasteful number, since it uses less digits than its factorization.

12665654305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184055.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 12665654305 in words is "twelve billion, six hundred sixty-five million, six hundred fifty-four thousand, three hundred five".