6213566656 has 168 divisors, whose sum is σ = 14827325184. Its totient is φ = 2556956160.

The previous prime is 6213566641. The next prime is 6213566669. The reversal of 6213566656 is 6566653126.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 5844781 + ... + 5845843.

It is an arithmetic number, because the mean of its divisors is an integer number (88257888).

Almost surely, 2^6213566656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6213566656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7413662592).

6213566656 is an abundant number, since it is smaller than the sum of its proper divisors (8613758528).

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

6213566656 is a wasteful number, since it uses less digits than its factorization.

6213566656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1118 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 46.

The square root of 6213566656 is about 78826.1800165402. The cubic root of 6213566656 is about 1838.4295295240.

The spelling of 6213566656 in words is "six billion, two hundred thirteen million, five hundred sixty-six thousand, six hundred fifty-six".