6621636552304 has 40 divisors (see below), whose sum is σ = 13447969243632. Its totient is φ = 3154948769280.

The previous prime is 6621636552283. The next prime is 6621636552329. The reversal of 6621636552304 is 4032556361266.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 117343399 + ... + 117399814.

Almost surely, 2^{6621636552304} is an apocalyptic number.

It is an amenable number.

6621636552304 is an abundant number, since it is smaller than the sum of its proper divisors (6826332691328).

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

6621636552304 is a wasteful number, since it uses less digits than its factorization.

6621636552304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234743305 (or 234743299 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 6621636552304 in words is "six trillion, six hundred twenty-one billion, six hundred thirty-six million, five hundred fifty-two thousand, three hundred four".