565145064 has 96 divisors (see below), whose sum is σ = 1675758240. Its totient is φ = 170640000.

The previous prime is 565145041. The next prime is 565145071. The reversal of 565145064 is 460541565.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249939 + ... + 252189.

It is an arithmetic number, because the mean of its divisors is an integer number (17455815).

Almost surely, 2^565145064 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 565145064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837879120).

565145064 is an abundant number, since it is smaller than the sum of its proper divisors (1110613176).

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

565145064 is a wasteful number, since it uses less digits than its factorization.

565145064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 565145064 is about 23772.7798963436. The cubic root of 565145064 is about 826.7736870059.

The spelling of 565145064 in words is "five hundred sixty-five million, one hundred forty-five thousand, sixty-four".