65228956800 has 576 divisors, whose sum is σ = 260834644800. Its totient is φ = 14258872320.

The previous prime is 65228956747. The next prime is 65228956841. The reversal of 65228956800 is 865982256.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10816186 + ... + 10822214.

It is an arithmetic number, because the mean of its divisors is an integer number (452837925).

Almost surely, 2^65228956800 is an apocalyptic number.

65228956800 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 65228956800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130417322400).

65228956800 is an abundant number, since it is smaller than the sum of its proper divisors (195605688000).

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

65228956800 is a wasteful number, since it uses less digits than its factorization.

65228956800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093 (or 6069 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 65228956800 in words is "sixty-five billion, two hundred twenty-eight million, nine hundred fifty-six thousand, eight hundred".