6562220544 has 240 divisors, whose sum is σ = 21225204000. Its totient is φ = 1934254080.

The previous prime is 6562220527. The next prime is 6562220563. The reversal of 6562220544 is 4450222656.

6562220544 is a `hidden beast` number, since 6 + 5 + 622 + 20 + 5 + 4 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 6562220499 and 6562220508.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1873707 + ... + 1877205.

It is an arithmetic number, because the mean of its divisors is an integer number (88438350).

Almost surely, 2^6562220544 is an apocalyptic number.

6562220544 is a gapful number since it is divisible by the number (64) 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 6562220544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10612602000).

6562220544 is an abundant number, since it is smaller than the sum of its proper divisors (14662983456).

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

6562220544 is a wasteful number, since it uses less digits than its factorization.

6562220544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571 (or 3552 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 6562220544 is about 81007.5338718566. The cubic root of 6562220544 is about 1872.1915210582.

The spelling of 6562220544 in words is "six billion, five hundred sixty-two million, two hundred twenty thousand, five hundred forty-four".