6220653660 has 192 divisors, whose sum is σ = 21351173760. Its totient is φ = 1493821440.

The previous prime is 6220653589. The next prime is 6220653679. The reversal of 6220653660 is 663560226.

6220653660 is a `hidden beast` number, since 62 + 2 + 0 + 6 + 536 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 277014 + ... + 298626.

It is an arithmetic number, because the mean of its divisors is an integer number (111204030).

Almost surely, 2^6220653660 is an apocalyptic number.

6220653660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6220653660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10675586880).

6220653660 is an abundant number, since it is smaller than the sum of its proper divisors (15130520100).

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

6220653660 is a wasteful number, since it uses less digits than its factorization.

6220653660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21685 (or 21677 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 6220653660 is about 78871.1205702062. The cubic root of 6220653660 is about 1839.1282161137.

The spelling of 6220653660 in words is "six billion, two hundred twenty million, six hundred fifty-three thousand, six hundred sixty".