11665241424605 has 8 divisors (see below), whose sum is σ = 13998750528600. Its totient is φ = 9331885926976.

The previous prime is 11665241424553. The next prime is 11665241424611. The reversal of 11665241424605 is 50642414256611.

It can be written as a sum of positive squares in 4 ways, for example, as 5839554411289 + 5825687013316 = 2416517^2 + 2413646^2 .

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 11665241424605 - 2⁶ = 11665241424541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11665241424605.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 38234450 + ... + 38538339.

It is an arithmetic number, because the mean of its divisors is an integer number (1749843816075).

Almost surely, 2^{11665241424605} is an apocalyptic number.

It is an amenable number.

11665241424605 is a deficient number, since it is larger than the sum of its proper divisors (2333509103995).

11665241424605 is an equidigital number, since it uses as much as digits as its factorization.

11665241424605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76803183.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 11665241424605 in words is "eleven trillion, six hundred sixty-five billion, two hundred forty-one million, four hundred twenty-four thousand, six hundred five".