565406616 has 64 divisors (see below), whose sum is σ = 1450068480. Its totient is φ = 183632000.

The previous prime is 565406609. The next prime is 565406623. The reversal of 565406616 is 616604565.

565406616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (565406609) and next prime (565406623).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282130 + ... + 284126.

It is an arithmetic number, because the mean of its divisors is an integer number (22657320).

Almost surely, 2^565406616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 565406616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725034240).

565406616 is an abundant number, since it is smaller than the sum of its proper divisors (884661864).

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

565406616 is a wasteful number, since it uses less digits than its factorization.

565406616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 565406616 is about 23778.2803415218. The cubic root of 565406616 is about 826.9012123524.

The spelling of 565406616 in words is "five hundred sixty-five million, four hundred six thousand, six hundred sixteen".