6665089600 has 189 divisors, whose sum is σ = 17872724097. Its totient is φ = 2445281280.

The previous prime is 6665089577. The next prime is 6665089619. The reversal of 6665089600 is 69805666.

The square root of 6665089600 is 81640.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 6654643776 + 10445824 = 81576^2 + 3232^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 42452722 + ... + 42452878.

Almost surely, 2^6665089600 is an apocalyptic number.

6665089600 is the 81640-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6665089600

6665089600 is an abundant number, since it is smaller than the sum of its proper divisors (11207634497).

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

6665089600 is a wasteful number, since it uses less digits than its factorization.

6665089600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The cubic root of 6665089600 is about 1881.9236384028.

The spelling of 6665089600 in words is "six billion, six hundred sixty-five million, eighty-nine thousand, six hundred".