65564330 has 32 divisors (see below), whose sum is σ = 130204368. Its totient is φ = 23616000.

The previous prime is 65564297. The next prime is 65564377. The reversal of 65564330 is 3346556.

It can be written as a sum of positive squares in 8 ways, for example, as 1708249 + 63856081 = 1307^2 + 7991^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821 + ... + 11480.

Almost surely, 2^65564330 is an apocalyptic number.

65564330 is a deficient number, since it is larger than the sum of its proper divisors (64640038).

65564330 is a wasteful number, since it uses less digits than its factorization.

65564330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12362.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 65564330 is about 8097.1803734386. The cubic root of 65564330 is about 403.2328225897.

The spelling of 65564330 in words is "sixty-five million, five hundred sixty-four thousand, three hundred thirty".