13136956560 has 480 divisors, whose sum is σ = 55777263360. Its totient is φ = 2696343552.

The previous prime is 13136956559. The next prime is 13136956571. The reversal of 13136956560 is 6565963131.

13136956560 is a `hidden beast` number, since 1 + 3 + 1 + 36 + 9 + 56 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2421531 + ... + 2426949.

It is an arithmetic number, because the mean of its divisors is an integer number (116202632).

Almost surely, 2^13136956560 is an apocalyptic number.

13136956560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13136956560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27888631680).

13136956560 is an abundant number, since it is smaller than the sum of its proper divisors (42640306800).

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

13136956560 is a wasteful number, since it uses less digits than its factorization.

13136956560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5486 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The spelling of 13136956560 in words is "thirteen billion, one hundred thirty-six million, nine hundred fifty-six thousand, five hundred sixty".