6220213660 has 24 divisors (see below), whose sum is σ = 13142593296. Its totient is φ = 2472819840.

The previous prime is 6220213651. The next prime is 6220213661. The reversal of 6220213660 is 663120226.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220213661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950761 + ... + 957280.

It is an arithmetic number, because the mean of its divisors is an integer number (547608054).

Almost surely, 2^6220213660 is an apocalyptic number.

It is an amenable number.

6220213660 is an abundant number, since it is smaller than the sum of its proper divisors (6922379636).

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

6220213660 is a wasteful number, since it uses less digits than its factorization.

6220213660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908213 (or 1908211 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6220213660 is about 78868.3311602319. The cubic root of 6220213660 is about 1839.0848532808.

Adding to 6220213660 its reverse (663120226), we get a palindrome (6883333886).

It can be divided in two parts, 622021 and 3660, that added together give a square (625681 = 791²).

The spelling of 6220213660 in words is "six billion, two hundred twenty million, two hundred thirteen thousand, six hundred sixty".