6220805556 has 24 divisors (see below), whose sum is σ = 16588815040. Its totient is φ = 1777372992.

The previous prime is 6220805551. The next prime is 6220805581. The reversal of 6220805556 is 6555080226.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220805551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37028521 + ... + 37028688.

Almost surely, 2^6220805556 is an apocalyptic number.

It is an amenable number.

6220805556 is an abundant number, since it is smaller than the sum of its proper divisors (10368009484).

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

6220805556 is a wasteful number, since it uses less digits than its factorization.

6220805556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74057223 (or 74057221 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 6220805556 is about 78872.0835023394. The cubic root of 6220805556 is about 1839.1431852772.

The spelling of 6220805556 in words is "six billion, two hundred twenty million, eight hundred five thousand, five hundred fifty-six".