65606212 has 24 divisors (see below), whose sum is σ = 136918656. Its totient is φ = 26894208.

The previous prime is 65606153. The next prime is 65606237. The reversal of 65606212 is 21260656.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50293 + ... + 51580.

It is an arithmetic number, because the mean of its divisors is an integer number (5704944).

Almost surely, 2^65606212 is an apocalyptic number.

It is an amenable number.

65606212 is an abundant number, since it is smaller than the sum of its proper divisors (71312444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65606212 is a wasteful number, since it uses less digits than its factorization.

65606212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101907 (or 101905 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 65606212 is about 8099.7661694644. The cubic root of 65606212 is about 403.3186650100.

Adding to 65606212 its reverse (21260656), we get a palindrome (86866868).

The spelling of 65606212 in words is "sixty-five million, six hundred six thousand, two hundred twelve".