13112116660 has 24 divisors (see below), whose sum is σ = 29155177800. Its totient is φ = 4936326144.

The previous prime is 13112116603. The next prime is 13112116669. The reversal of 13112116660 is 6661121131.

It can be written as a sum of positive squares in 4 ways, for example, as 4699925136 + 8412191524 = 68556^2 + 91718^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112116669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19282185 + ... + 19282864.

It is an arithmetic number, because the mean of its divisors is an integer number (1214799075).

Almost surely, 2^13112116660 is an apocalyptic number.

13112116660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112116660 is an abundant number, since it is smaller than the sum of its proper divisors (16043061140).

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

13112116660 is a wasteful number, since it uses less digits than its factorization.

13112116660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38565075 (or 38565073 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 13112116660 its reverse (6661121131), we get a palindrome (19773237791).

The spelling of 13112116660 in words is "thirteen billion, one hundred twelve million, one hundred sixteen thousand, six hundred sixty".