11665617602 has 8 divisors (see below), whose sum is σ = 17653280076. Its totient is φ = 5781190912.

The previous prime is 11665617589. The next prime is 11665617661. The reversal of 11665617602 is 20671656611.

11665617602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11631406801 + 34210801 = 107849^2 + 5849^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11665617602.

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 3 ways as a sum of consecutive naturals, for example, 25808663 + ... + 25809114.

Almost surely, 2^11665617602 is an apocalyptic number.

11665617602 is a deficient number, since it is larger than the sum of its proper divisors (5987662474).

11665617602 is a wasteful number, since it uses less digits than its factorization.

11665617602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51617892.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 11665617602 in words is "eleven billion, six hundred sixty-five million, six hundred seventeen thousand, six hundred two".