64568 has 16 divisors (see below), whose sum is σ = 138480. Its totient is φ = 27648.

The previous prime is 64567. The next prime is 64577. The reversal of 64568 is 86546.

It is a plaindrome in base 11.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 64568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521 + ... + 632.

It is an arithmetic number, because the mean of its divisors is an integer number (8655).

2⁶⁴⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

64568 is an abundant number, since it is smaller than the sum of its proper divisors (73912).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69240).

64568 is a wasteful number, since it uses less digits than its factorization.

64568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1162 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 64568 is about 254.1023415870. The cubic root of 64568 is about 40.1179849798.

The spelling of 64568 in words is "sixty-four thousand, five hundred sixty-eight".