6563662065 has 48 divisors (see below), whose sum is σ = 11903044608. Its totient is φ = 3469568256.

The previous prime is 6563662057. The next prime is 6563662069. The reversal of 6563662065 is 5602663656.

6563662065 is a `hidden beast` number, since 6 + 5 + 636 + 6 + 2 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 6563662065 - 2³ = 6563662057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6563662065.

It is not an unprimeable number, because it can be changed into a prime (6563662069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113392 + ... + 161198.

It is an arithmetic number, because the mean of its divisors is an integer number (247980096).

Almost surely, 2^6563662065 is an apocalyptic number.

It is an amenable number.

6563662065 is a deficient number, since it is larger than the sum of its proper divisors (5339382543).

6563662065 is a wasteful number, since it uses less digits than its factorization.

6563662065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47940 (or 47928 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The square root of 6563662065 is about 81016.4308335044. The cubic root of 6563662065 is about 1872.3285989363.

The spelling of 6563662065 in words is "six billion, five hundred sixty-three million, six hundred sixty-two thousand, sixty-five".