13118081660 has 12 divisors (see below), whose sum is σ = 27547971528. Its totient is φ = 5247232656.

The previous prime is 13118081611. The next prime is 13118081689. The reversal of 13118081660 is 6618081131.

13118081660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13118081660.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 327952022 + ... + 327952061.

It is an arithmetic number, because the mean of its divisors is an integer number (2295664294).

Almost surely, 2^13118081660 is an apocalyptic number.

13118081660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13118081660 is an abundant number, since it is smaller than the sum of its proper divisors (14429889868).

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

13118081660 is a wasteful number, since it uses less digits than its factorization.

13118081660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655904092 (or 655904090 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 13118081660 in words is "thirteen billion, one hundred eighteen million, eighty-one thousand, six hundred sixty".