65244320000 has 360 divisors, whose sum is σ = 170338424256. Its totient is φ = 24910848000.

The previous prime is 65244319999. The next prime is 65244320069. The reversal of 65244320000 is 2344256.

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, 609759947 + ... + 609760053.

Almost surely, 2^65244320000 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 65244320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85169212128).

65244320000 is an abundant number, since it is smaller than the sum of its proper divisors (105094104256).

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

65244320000 is a wasteful number, since it uses less digits than its factorization.

65244320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 65244320000 its reverse (2344256), we get a palindrome (65246664256).

The spelling of 65244320000 in words is "sixty-five billion, two hundred forty-four million, three hundred twenty thousand".