65515113145213 has 4 divisors (see below), whose sum is σ = 65561153282368. Its totient is φ = 65469073008060.

The previous prime is 65515113145201. The next prime is 65515113145217. The reversal of 65515113145213 is 31254131151556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65515113145213 is a prime.

It is a super-2 number, since 2×65515113145213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65515113145213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65515113145217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23020066443 + ... + 23020069288.

It is an arithmetic number, because the mean of its divisors is an integer number (16390288320592).

Almost surely, 2^{65515113145213} is an apocalyptic number.

It is an amenable number.

65515113145213 is a deficient number, since it is larger than the sum of its proper divisors (46040137155).

65515113145213 is a wasteful number, since it uses less digits than its factorization.

65515113145213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46040137154.

The product of its digits is 270000, while the sum is 43.

Adding to 65515113145213 its reverse (31254131151556), we get a palindrome (96769244296769).

The spelling of 65515113145213 in words is "sixty-five trillion, five hundred fifteen billion, one hundred thirteen million, one hundred forty-five thousand, two hundred thirteen".