64585516 has 24 divisors (see below), whose sum is σ = 120551760. Its totient is φ = 30170112.

The previous prime is 64585513. The next prime is 64585529. The reversal of 64585516 is 61558546.

It is not an unprimeable number, because it can be changed into a prime (64585511) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6036 + ... + 12868.

It is an arithmetic number, because the mean of its divisors is an integer number (5022990).

Almost surely, 2^64585516 is an apocalyptic number.

It is an amenable number.

64585516 is a deficient number, since it is larger than the sum of its proper divisors (55966244).

64585516 is a wasteful number, since it uses less digits than its factorization.

64585516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6991 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 64585516 is about 8036.5114322074. The cubic root of 64585516 is about 401.2161238598.

The spelling of 64585516 in words is "sixty-four million, five hundred eighty-five thousand, five hundred sixteen".