13135316560 has 80 divisors (see below), whose sum is σ = 33742054656. Its totient is φ = 4730046464.

The previous prime is 13135316489. The next prime is 13135316573. The reversal of 13135316560 is 6561353131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×13135316560² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178684 + ... + 241243.

Almost surely, 2^13135316560 is an apocalyptic number.

13135316560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13135316560 is an abundant number, since it is smaller than the sum of its proper divisors (20606738096).

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

13135316560 is a wasteful number, since it uses less digits than its factorization.

13135316560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419980 (or 419974 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 34.

Adding to 13135316560 its reverse (6561353131), we get a palindrome (19696669691).

The spelling of 13135316560 in words is "thirteen billion, one hundred thirty-five million, three hundred sixteen thousand, five hundred sixty".