65216606 has 32 divisors (see below), whose sum is σ = 122689728. Its totient is φ = 25309440.

The previous prime is 65216597. The next prime is 65216611. The reversal of 65216606 is 60661256.

65216606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6266 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (3834054).

Almost surely, 2^65216606 is an apocalyptic number.

65216606 is a deficient number, since it is larger than the sum of its proper divisors (57473122).

65216606 is a wasteful number, since it uses less digits than its factorization.

65216606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6836.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 65216606 is about 8075.6799094565. The cubic root of 65216606 is about 402.5187028846.

The spelling of 65216606 in words is "sixty-five million, two hundred sixteen thousand, six hundred six".