65116211 has 4 divisors (see below), whose sum is σ = 68543400. Its totient is φ = 61689024.

The previous prime is 65116201. The next prime is 65116217. The reversal of 65116211 is 11261156.

65116211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65116211 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (65116217) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1713566 + ... + 1713603.

It is an arithmetic number, because the mean of its divisors is an integer number (17135850).

Almost surely, 2^65116211 is an apocalyptic number.

65116211 is a deficient number, since it is larger than the sum of its proper divisors (3427189).

65116211 is a wasteful number, since it uses less digits than its factorization.

65116211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427188.

The product of its digits is 360, while the sum is 23.

The square root of 65116211 is about 8069.4616301213. The cubic root of 65116211 is about 402.3120498981.

Adding to 65116211 its reverse (11261156), we get a palindrome (76377367).

The spelling of 65116211 in words is "sixty-five million, one hundred sixteen thousand, two hundred eleven".