11165040660 has 24 divisors (see below), whose sum is σ = 31262114016. Its totient is φ = 2977344160.

The previous prime is 11165040637. The next prime is 11165040671. The reversal of 11165040660 is 6604056111.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93041946 + ... + 93042065.

It is an arithmetic number, because the mean of its divisors is an integer number (1302588084).

Almost surely, 2^11165040660 is an apocalyptic number.

11165040660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11165040660 is an abundant number, since it is smaller than the sum of its proper divisors (20097073356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11165040660 is a wasteful number, since it uses less digits than its factorization.

11165040660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186084023 (or 186084021 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 11165040660 its reverse (6604056111), we get a palindrome (17769096771).

The spelling of 11165040660 in words is "eleven billion, one hundred sixty-five million, forty thousand, six hundred sixty".