64516365 has 16 divisors (see below), whose sum is σ = 114696000. Its totient is φ = 34408656.

The previous prime is 64516339. The next prime is 64516373. The reversal of 64516365 is 56361546.

64516365 is a `hidden beast` number, since 645 + 1 + 6 + 3 + 6 + 5 = 666.

64516365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64516365 - 2¹⁵ = 64483597 is a prime.

It is a super-2 number, since 2×64516365² = 8324722705626450, which contains 22 as substring.

It is a Curzon number.

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, 238815 + ... + 239084.

It is an arithmetic number, because the mean of its divisors is an integer number (7168500).

Almost surely, 2^64516365 is an apocalyptic number.

It is an amenable number.

64516365 is a deficient number, since it is larger than the sum of its proper divisors (50179635).

64516365 is a wasteful number, since it uses less digits than its factorization.

64516365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477913 (or 477907 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 64516365 is about 8032.2079778850. The cubic root of 64516365 is about 401.0728801642.

The spelling of 64516365 in words is "sixty-four million, five hundred sixteen thousand, three hundred sixty-five".