565605161 has 8 divisors (see below), whose sum is σ = 624835200. Its totient is φ = 507677040.

The previous prime is 565605133. The next prime is 565605197. The reversal of 565605161 is 161506565.

565605161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565605161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (565605361) 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, 324566 + ... + 326303.

It is an arithmetic number, because the mean of its divisors is an integer number (78104400).

Almost surely, 2^565605161 is an apocalyptic number.

It is an amenable number.

565605161 is a deficient number, since it is larger than the sum of its proper divisors (59230039).

565605161 is a wasteful number, since it uses less digits than its factorization.

565605161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650959.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 565605161 is about 23782.4548985171. The cubic root of 565605161 is about 826.9979910147.

The spelling of 565605161 in words is "five hundred sixty-five million, six hundred five thousand, one hundred sixty-one".