65216210 has 16 divisors (see below), whose sum is σ = 117504000. Its totient is φ = 26060976.

The previous prime is 65216209. The next prime is 65216297. The reversal of 65216210 is 1261256.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10241 + ... + 15339.

It is an arithmetic number, because the mean of its divisors is an integer number (7344000).

Almost surely, 2^65216210 is an apocalyptic number.

65216210 is a deficient number, since it is larger than the sum of its proper divisors (52287790).

65216210 is a wasteful number, since it uses less digits than its factorization.

65216210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 65216210 is about 8075.6553913599. The cubic root of 65216210 is about 402.5178881753.

Adding to 65216210 its reverse (1261256), we get a palindrome (66477466).

The spelling of 65216210 in words is "sixty-five million, two hundred sixteen thousand, two hundred ten".