5665565000646 has 48 divisors (see below), whose sum is σ = 12354951380928. Its totient is φ = 1876284259200.

The previous prime is 5665565000639. The next prime is 5665565000663. The reversal of 5665565000646 is 6460005655665.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5665565000592 and 5665565000601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26432226 + ... + 26645706.

It is an arithmetic number, because the mean of its divisors is an integer number (257394820436).

Almost surely, 2^{5665565000646} is an apocalyptic number.

5665565000646 is an abundant number, since it is smaller than the sum of its proper divisors (6689386380282).

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

5665565000646 is a wasteful number, since it uses less digits than its factorization.

5665565000646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223037 (or 223034 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 54.

The spelling of 5665565000646 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, six hundred forty-six", and thus it is an aban number.