6563985260 has 192 divisors, whose sum is σ = 17627258880. Its totient is φ = 2001162240.

The previous prime is 6563985257. The next prime is 6563985269. The reversal of 6563985260 is 625893656.

It is a super-3 number, since 3×6563985260³ (a number of 30 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6563985199 and 6563985208.

It is not an unprimeable number, because it can be changed into a prime (6563985269) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3171506 + ... + 3173574.

It is an arithmetic number, because the mean of its divisors is an integer number (91808640).

Almost surely, 2^6563985260 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 6563985260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8813629440).

6563985260 is an abundant number, since it is smaller than the sum of its proper divisors (11063273620).

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

6563985260 is a wasteful number, since it uses less digits than its factorization.

6563985260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2174 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 50.

The square root of 6563985260 is about 81018.4254352058. The cubic root of 6563985260 is about 1872.3593296119.

The spelling of 6563985260 in words is "six billion, five hundred sixty-three million, nine hundred eighty-five thousand, two hundred sixty".