565549900980 has 24 divisors (see below), whose sum is σ = 1583539722912. Its totient is φ = 150813306912.

The previous prime is 565549900939. The next prime is 565549900987. The reversal of 565549900980 is 89009945565.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 9425831683 = 565549900980 / (5 + 6 + 5 + 5 + 4 + 9 + 9 + 0 + 0 + 9 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565549900987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4712915782 + ... + 4712915901.

It is an arithmetic number, because the mean of its divisors is an integer number (65980821788).

Almost surely, 2^565549900980 is an apocalyptic number.

It is an amenable number.

565549900980 is an abundant number, since it is smaller than the sum of its proper divisors (1017989821932).

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

565549900980 is a wasteful number, since it uses less digits than its factorization.

565549900980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425831695 (or 9425831693 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 60.

The spelling of 565549900980 in words is "five hundred sixty-five billion, five hundred forty-nine million, nine hundred thousand, nine hundred eighty".