6621441504 has 24 divisors (see below), whose sum is σ = 17381284200. Its totient is φ = 2207147136.

The previous prime is 6621441419. The next prime is 6621441511. The reversal of 6621441504 is 4051441266.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34486579 + ... + 34486770.

It is an arithmetic number, because the mean of its divisors is an integer number (724220175).

Almost surely, 2^6621441504 is an apocalyptic number.

It is an amenable number.

6621441504 is an abundant number, since it is smaller than the sum of its proper divisors (10759842696).

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

6621441504 is a wasteful number, since it uses less digits than its factorization.

6621441504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68973362 (or 68973354 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 6621441504 is about 81372.2403771704. The cubic root of 6621441504 is about 1877.8065470030.

The spelling of 6621441504 in words is "six billion, six hundred twenty-one million, four hundred forty-one thousand, five hundred four".