6563272320 has 768 divisors, whose sum is σ = 26502537600. Its totient is φ = 1532805120.

The previous prime is 6563272301. The next prime is 6563272379. The reversal of 6563272320 is 232723656.

It is a happy number.

6563272320 is a `hidden beast` number, since 6 + 5 + 6 + 327 + 2 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89907804 + ... + 89907876.

Almost surely, 2^6563272320 is an apocalyptic number.

6563272320 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 6563272320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13251268800).

6563272320 is an abundant number, since it is smaller than the sum of its proper divisors (19939265280).

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

6563272320 is a wasteful number, since it uses less digits than its factorization.

6563272320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 6563272320 is about 81014.0254523869. The cubic root of 6563272320 is about 1872.2915390782.

Adding to 6563272320 its reverse (232723656), we get a palindrome (6795995976).

The spelling of 6563272320 in words is "six billion, five hundred sixty-three million, two hundred seventy-two thousand, three hundred twenty".