65016220 has 12 divisors (see below), whose sum is σ = 136534104. Its totient is φ = 26006480.

The previous prime is 65016187. The next prime is 65016229. The reversal of 65016220 is 2261056.

It is a junction number, because it is equal to n+sod(n) for n = 65016191 and 65016200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65016229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1625386 + ... + 1625425.

It is an arithmetic number, because the mean of its divisors is an integer number (11377842).

Almost surely, 2^65016220 is an apocalyptic number.

It is an amenable number.

65016220 is an abundant number, since it is smaller than the sum of its proper divisors (71517884).

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

65016220 is a wasteful number, since it uses less digits than its factorization.

65016220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250820 (or 3250818 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 65016220 is about 8063.2636072499. The cubic root of 65016220 is about 402.1060172681.

Adding to 65016220 its reverse (2261056), we get a palindrome (67277276).

It can be divided in two parts, 6501 and 6220, that added together give a palindrome (12721).

The spelling of 65016220 in words is "sixty-five million, sixteen thousand, two hundred twenty".