65328482880 has 280 divisors, whose sum is σ = 234093870648. Its totient is φ = 17292828672.

The previous prime is 65328482851. The next prime is 65328482899. The reversal of 65328482880 is 8828482356.

65328482880 is a `hidden beast` number, since 6 + 532 + 8 + 4 + 8 + 28 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21006444096 + 44322038784 = 144936^2 + 210528^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3541842 + ... + 3560238.

Almost surely, 2^65328482880 is an apocalyptic number.

65328482880 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 65328482880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117046935324).

65328482880 is an abundant number, since it is smaller than the sum of its proper divisors (168765387768).

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

65328482880 is a wasteful number, since it uses less digits than its factorization.

65328482880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18563 (or 18544 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

It can be divided in two parts, 653284 and 82880, that added together give a square (736164 = 858²).

The spelling of 65328482880 in words is "sixty-five billion, three hundred twenty-eight million, four hundred eighty-two thousand, eight hundred eighty".