65326480128 has 864 divisors, whose sum is σ = 249168669120. Its totient is φ = 16721510400.

The previous prime is 65326480117. The next prime is 65326480129. The reversal of 65326480128 is 82108462356.

65326480128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (864).

It is not an unprimeable number, because it can be changed into a prime (65326480129) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 162908728 + ... + 162909128.

Almost surely, 2^65326480128 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 65326480128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124584334560).

65326480128 is an abundant number, since it is smaller than the sum of its proper divisors (183842188992).

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

65326480128 is a wasteful number, since it uses less digits than its factorization.

65326480128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 65326480128 in words is "sixty-five billion, three hundred twenty-six million, four hundred eighty thousand, one hundred twenty-eight".