12605135666333 has 4 divisors (see below), whose sum is σ = 14405869332960. Its totient is φ = 10804401999708.

The previous prime is 12605135666323. The next prime is 12605135666351. The reversal of 12605135666333 is 33366653150621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12605135666333 - 2⁸ = 12605135666077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605135666323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900366833303 + ... + 900366833316.

It is an arithmetic number, because the mean of its divisors is an integer number (3601467333240).

Almost surely, 2^{12605135666333} is an apocalyptic number.

It is an amenable number.

12605135666333 is a deficient number, since it is larger than the sum of its proper divisors (1800733666627).

12605135666333 is an equidigital number, since it uses as much as digits as its factorization.

12605135666333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800733666626.

The product of its (nonzero) digits is 5248800, while the sum is 50.

The spelling of 12605135666333 in words is "twelve trillion, six hundred five billion, one hundred thirty-five million, six hundred sixty-six thousand, three hundred thirty-three".