64853568 has 112 divisors (see below), whose sum is σ = 205394560. Its totient is φ = 19948032.

The previous prime is 64853531. The next prime is 64853573. The reversal of 64853568 is 86535846.

64853568 is a `hidden beast` number, since 6 + 4 + 85 + 3 + 568 = 666.

64853568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21021 + ... + 23907.

It is an arithmetic number, because the mean of its divisors is an integer number (1833880).

Almost surely, 2^64853568 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 64853568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102697280).

64853568 is an abundant number, since it is smaller than the sum of its proper divisors (140540992).

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

64853568 is a wasteful number, since it uses less digits than its factorization.

64853568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921 (or 2905 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 64853568 is about 8053.1713007982. The cubic root of 64853568 is about 401.7704191460.

The spelling of 64853568 in words is "sixty-four million, eight hundred fifty-three thousand, five hundred sixty-eight".