13118660 has 24 divisors (see below), whose sum is σ = 28003416. Its totient is φ = 5160960.

The previous prime is 13118653. The next prime is 13118669. The reversal of 13118660 is 6681131.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 11999296 = 1058^2 + 3464^2 .

It is not an unprimeable number, because it can be changed into a prime (13118669) 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, 4157 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (1166809).

Almost surely, 2^13118660 is an apocalyptic number.

13118660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13118660 is an abundant number, since it is smaller than the sum of its proper divisors (14884756).

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

13118660 is a wasteful number, since it uses less digits than its factorization.

13118660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823 (or 10821 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13118660 is about 3621.9690777255. The cubic root of 13118660 is about 235.8467117179.

Adding to 13118660 its reverse (6681131), we get a palindrome (19799791).

The spelling of 13118660 in words is "thirteen million, one hundred eighteen thousand, six hundred sixty".