64596565 has 16 divisors (see below), whose sum is σ = 86365440. Its totient is φ = 45977920.

The previous prime is 64596557. The next prime is 64596569. The reversal of 64596565 is 56569546.

It is a happy number.

It is not a de Polignac number, because 64596565 - 2³ = 64596557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64596569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9910 + ... + 15079.

It is an arithmetic number, because the mean of its divisors is an integer number (5397840).

Almost surely, 2^64596565 is an apocalyptic number.

It is an amenable number.

64596565 is a deficient number, since it is larger than the sum of its proper divisors (21768875).

64596565 is a wasteful number, since it uses less digits than its factorization.

64596565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25052.

The product of its digits is 972000, while the sum is 46.

The square root of 64596565 is about 8037.1988279499. The cubic root of 64596565 is about 401.2390019727.

The spelling of 64596565 in words is "sixty-four million, five hundred ninety-six thousand, five hundred sixty-five".