11165611609 has 8 divisors (see below), whose sum is σ = 11182500000. Its totient is φ = 11148738432.

The previous prime is 11165611607. The next prime is 11165611621. The reversal of 11165611609 is 90611656111.

It is a happy number.

11165611609 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 11165611609 - 2¹ = 11165611607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11165611607) 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, 2619522 + ... + 2623780.

It is an arithmetic number, because the mean of its divisors is an integer number (1397812500).

Almost surely, 2^11165611609 is an apocalyptic number.

It is an amenable number.

11165611609 is a deficient number, since it is larger than the sum of its proper divisors (16888391).

11165611609 is a wasteful number, since it uses less digits than its factorization.

11165611609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607.

The product of its (nonzero) digits is 9720, while the sum is 37.

The spelling of 11165611609 in words is "eleven billion, one hundred sixty-five million, six hundred eleven thousand, six hundred nine".