65525445312 has 224 divisors, whose sum is σ = 186800947200. Its totient is φ = 20208632832.

The previous prime is 65525445287. The next prime is 65525445319. The reversal of 65525445312 is 21354452556.

65525445312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65525445319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35942833 + ... + 35944655.

It is an arithmetic number, because the mean of its divisors is an integer number (833932800).

Almost surely, 2^65525445312 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 65525445312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93400473600).

65525445312 is an abundant number, since it is smaller than the sum of its proper divisors (121275501888).

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

65525445312 is a wasteful number, since it uses less digits than its factorization.

65525445312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 2073 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

Adding to 65525445312 its reverse (21354452556), we get a palindrome (86879897868).

The spelling of 65525445312 in words is "sixty-five billion, five hundred twenty-five million, four hundred forty-five thousand, three hundred twelve".