6620189456 has 40 divisors (see below), whose sum is σ = 13723080000. Its totient is φ = 3084462720.

The previous prime is 6620189413. The next prime is 6620189467. The reversal of 6620189456 is 6549810266.

It is a self number, because there is not a number n which added to its sum of digits gives 6620189456.

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 7 ways as a sum of consecutive naturals, for example, 159956 + ... + 197043.

It is an arithmetic number, because the mean of its divisors is an integer number (343077000).

Almost surely, 2^6620189456 is an apocalyptic number.

It is an amenable number.

6620189456 is an abundant number, since it is smaller than the sum of its proper divisors (7102890544).

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

6620189456 is a wasteful number, since it uses less digits than its factorization.

6620189456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357087 (or 357081 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 6620189456 is about 81364.5466772844. The cubic root of 6620189456 is about 1877.6881814308.

The spelling of 6620189456 in words is "six billion, six hundred twenty million, one hundred eighty-nine thousand, four hundred fifty-six".