65448821760 has 264 divisors, whose sum is σ = 243513740160. Its totient is φ = 14959558656.

The previous prime is 65448821741. The next prime is 65448821773. The reversal of 65448821760 is 6712884456.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709161 + ... + 796119.

Almost surely, 2^65448821760 is an apocalyptic number.

65448821760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65448821760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121756870080).

65448821760 is an abundant number, since it is smaller than the sum of its proper divisors (178064918400).

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

65448821760 is a wasteful number, since it uses less digits than its factorization.

65448821760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87001 (or 86976 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 65448821760 in words is "sixty-five billion, four hundred forty-eight million, eight hundred twenty-one thousand, seven hundred sixty".