565480640603761 has 8 divisors (see below), whose sum is σ = 577074111503400. Its totient is φ = 553991147021952.

The previous prime is 565480640603737. The next prime is 565480640603773. The reversal of 565480640603761 is 167306046084565.

It can be written as a sum of positive squares in 4 ways, for example, as 44793182736 + 565435847421025 = 211644^2 + 23778895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 565480640603761 - 2¹¹ = 565480640601713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565480640603761.

It is not an unprimeable number, because it can be changed into a prime (565480640601761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25994318470 + ... + 25994340223.

It is an arithmetic number, because the mean of its divisors is an integer number (72134263937925).

Almost surely, 2^{565480640603761} is an apocalyptic number.

It is an amenable number.

565480640603761 is a deficient number, since it is larger than the sum of its proper divisors (11593470899639).

565480640603761 is a wasteful number, since it uses less digits than its factorization.

565480640603761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51988658915.

The product of its (nonzero) digits is 87091200, while the sum is 61.

The spelling of 565480640603761 in words is "five hundred sixty-five trillion, four hundred eighty billion, six hundred forty million, six hundred three thousand, seven hundred sixty-one".