65243162512 has 80 divisors (see below), whose sum is σ = 138812544000. Its totient is φ = 29460309120.

The previous prime is 65243162489. The next prime is 65243162533. The reversal of 65243162512 is 21526134256.

65243162512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 32186043 + ... + 32188069.

It is an arithmetic number, because the mean of its divisors is an integer number (1735156800).

Almost surely, 2^65243162512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65243162512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69406272000).

65243162512 is an abundant number, since it is smaller than the sum of its proper divisors (73569381488).

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

65243162512 is a wasteful number, since it uses less digits than its factorization.

65243162512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 3158 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

Adding to 65243162512 its reverse (21526134256), we get a palindrome (86769296768).

The spelling of 65243162512 in words is "sixty-five billion, two hundred forty-three million, one hundred sixty-two thousand, five hundred twelve".