6620512208 has 20 divisors (see below), whose sum is σ = 12989615040. Its totient is φ = 3268353504.

The previous prime is 6620512183. The next prime is 6620512219. The reversal of 6620512208 is 8022150266.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2617610 + ... + 2620137.

It is an arithmetic number, because the mean of its divisors is an integer number (649480752).

Almost surely, 2^6620512208 is an apocalyptic number.

It is an amenable number.

6620512208 is a deficient number, since it is larger than the sum of its proper divisors (6369102832).

6620512208 is a wasteful number, since it uses less digits than its factorization.

6620512208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237834 (or 5237828 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 6620512208 is about 81366.5300230998. The cubic root of 6620512208 is about 1877.7186950473.

The spelling of 6620512208 in words is "six billion, six hundred twenty million, five hundred twelve thousand, two hundred eight".