6565202220 has 48 divisors (see below), whose sum is σ = 18729416160. Its totient is φ = 1717687296.

The previous prime is 6565202219. The next prime is 6565202243. The reversal of 6565202220 is 222025656.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1029085 + ... + 1035444.

It is an arithmetic number, because the mean of its divisors is an integer number (390196170).

Almost surely, 2^6565202220 is an apocalyptic number.

6565202220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6565202220 is an abundant number, since it is smaller than the sum of its proper divisors (12164213940).

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

6565202220 is a wasteful number, since it uses less digits than its factorization.

6565202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064594 (or 2064592 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 6565202220 is about 81025.9354774754. The cubic root of 6565202220 is about 1872.4750339956.

Adding to 6565202220 its reverse (222025656), we get a palindrome (6787227876).

The spelling of 6565202220 in words is "six billion, five hundred sixty-five million, two hundred two thousand, two hundred twenty".