1116611660 has 24 divisors (see below), whose sum is σ = 2345579376. Its totient is φ = 446512320.

The previous prime is 1116611609. The next prime is 1116611669. The reversal of 1116611660 is 661166111.

It is not an unprimeable number, because it can be changed into a prime (1116611669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88550 + ... + 100370.

It is an arithmetic number, because the mean of its divisors is an integer number (97732474).

Almost surely, 2^1116611660 is an apocalyptic number.

1116611660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116611660 is an abundant number, since it is smaller than the sum of its proper divisors (1228967716).

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

1116611660 is a wasteful number, since it uses less digits than its factorization.

1116611660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16553 (or 16551 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1116611660 is about 33415.7397045165. The cubic root of 1116611660 is about 1037.4505044371.

Adding to 1116611660 its reverse (661166111), we get a palindrome (1777777771).

The spelling of 1116611660 in words is "one billion, one hundred sixteen million, six hundred eleven thousand, six hundred sixty".