6455800320 has 320 divisors, whose sum is σ = 22050838656. Its totient is φ = 1605632000.

The previous prime is 6455800243. The next prime is 6455800321. The reversal of 6455800320 is 230085546.

It is a tau number, because it is divible by the number of its divisors (320).

It is not an unprimeable number, because it can be changed into a prime (6455800321) 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 31 ways as a sum of consecutive naturals, for example, 25720195 + ... + 25720445.

Almost surely, 2^6455800320 is an apocalyptic number.

6455800320 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 6455800320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11025419328).

6455800320 is an abundant number, since it is smaller than the sum of its proper divisors (15595038336).

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

6455800320 is a wasteful number, since it uses less digits than its factorization.

6455800320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 6455800320 is about 80347.9951212225. The cubic root of 6455800320 is about 1862.0158050686.

Adding to 6455800320 its reverse (230085546), we get a palindrome (6685885866).

The spelling of 6455800320 in words is "six billion, four hundred fifty-five million, eight hundred thousand, three hundred twenty".