65565064 has 16 divisors (see below), whose sum is σ = 123022620. Its totient is φ = 32759040.

The previous prime is 65565053. The next prime is 65565077. The reversal of 65565064 is 46056556.

It can be written as a sum of positive squares in 2 ways, for example, as 65448100 + 116964 = 8090^2 + 342^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16452 + ... + 20044.

Almost surely, 2^65565064 is an apocalyptic number.

It is an amenable number.

65565064 is a deficient number, since it is larger than the sum of its proper divisors (57457556).

65565064 is a wasteful number, since it uses less digits than its factorization.

65565064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 65565064 is about 8097.2256977313. The cubic root of 65565064 is about 403.2343273295.

The spelling of 65565064 in words is "sixty-five million, five hundred sixty-five thousand, sixty-four".