13345130565 has 64 divisors (see below), whose sum is σ = 25627956480. Its totient is φ = 6549776640.

The previous prime is 13345130531. The next prime is 13345130569. The reversal of 13345130565 is 56503154331.

13345130565 is a `hidden beast` number, since 1 + 3 + 345 + 1 + 305 + 6 + 5 = 666.

It is not a de Polignac number, because 13345130565 - 2¹⁶ = 13345065029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13345130569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 569419 + ... + 592391.

It is an arithmetic number, because the mean of its divisors is an integer number (400436820).

Almost surely, 2^13345130565 is an apocalyptic number.

13345130565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13345130565 is a deficient number, since it is larger than the sum of its proper divisors (12282825915).

13345130565 is a wasteful number, since it uses less digits than its factorization.

13345130565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23331 (or 23325 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 13345130565 its reverse (56503154331), we get a palindrome (69848284896).

The spelling of 13345130565 in words is "thirteen billion, three hundred forty-five million, one hundred thirty thousand, five hundred sixty-five".