6563366020 has 24 divisors (see below), whose sum is σ = 14382333504. Its totient is φ = 2511200736.

The previous prime is 6563365993. The next prime is 6563366021. The reversal of 6563366020 is 206633656.

It is not an unprimeable number, because it can be changed into a prime (6563366021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7133634 + ... + 7134553.

It is an arithmetic number, because the mean of its divisors is an integer number (599263896).

Almost surely, 2^6563366020 is an apocalyptic number.

It is an amenable number.

6563366020 is an abundant number, since it is smaller than the sum of its proper divisors (7818967484).

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

6563366020 is a wasteful number, since it uses less digits than its factorization.

6563366020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14268219 (or 14268217 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 37.

The square root of 6563366020 is about 81014.6037452508. The cubic root of 6563366020 is about 1872.3004489062.

Adding to 6563366020 its reverse (206633656), we get a palindrome (6769999676).

The spelling of 6563366020 in words is "six billion, five hundred sixty-three million, three hundred sixty-six thousand, twenty".