6621005152 has 24 divisors (see below), whose sum is σ = 13338248616. Its totient is φ = 3233513472.

The previous prime is 6621005137. The next prime is 6621005177. The reversal of 6621005152 is 2515001266.

It is a self number, because there is not a number n which added to its sum of digits gives 6621005152.

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, 2404513 + ... + 2407264.

It is an arithmetic number, because the mean of its divisors is an integer number (555760359).

Almost surely, 2^6621005152 is an apocalyptic number.

It is an amenable number.

6621005152 is an abundant number, since it is smaller than the sum of its proper divisors (6717243464).

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

6621005152 is a wasteful number, since it uses less digits than its factorization.

6621005152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811830 (or 4811822 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6621005152 is about 81369.5591237903. The cubic root of 6621005152 is about 1877.7652970404.

The spelling of 6621005152 in words is "six billion, six hundred twenty-one million, five thousand, one hundred fifty-two".