6605562400 has 72 divisors (see below), whose sum is σ = 16159122000. Its totient is φ = 2636770560.

The previous prime is 6605562391. The next prime is 6605562421. The reversal of 6605562400 is 42655066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390927 + ... + 407473.

It is an arithmetic number, because the mean of its divisors is an integer number (224432250).

Almost surely, 2^6605562400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6605562400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8079561000).

6605562400 is an abundant number, since it is smaller than the sum of its proper divisors (9553559600).

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

6605562400 is a wasteful number, since it uses less digits than its factorization.

6605562400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17066 (or 17053 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6605562400 is about 81274.6110418254. The cubic root of 6605562400 is about 1876.3042682317.

The spelling of 6605562400 in words is "six billion, six hundred five million, five hundred sixty-two thousand, four hundred".