65501299200 has 480 divisors, whose sum is σ = 241211615040. Its totient is φ = 15571353600.

The previous prime is 65501299189. The next prime is 65501299207. The reversal of 65501299200 is 299210556.

It is a tau number, because it is divible by the number of its divisors (480).

It is not an unprimeable number, because it can be changed into a prime (65501299207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12400560 + ... + 12405840.

It is an arithmetic number, because the mean of its divisors is an integer number (502524198).

Almost surely, 2^65501299200 is an apocalyptic number.

65501299200 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 65501299200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120605807520).

65501299200 is an abundant number, since it is smaller than the sum of its proper divisors (175710315840).

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

65501299200 is a wasteful number, since it uses less digits than its factorization.

65501299200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348 (or 5327 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The spelling of 65501299200 in words is "sixty-five billion, five hundred one million, two hundred ninety-nine thousand, two hundred".