6661053200 has 30 divisors (see below), whose sum is σ = 16003181274. Its totient is φ = 2664421120.

The previous prime is 6661053137. The next prime is 6661053229. The reversal of 6661053200 is 23501666.

It can be written as a sum of positive squares in 3 ways, for example, as 553943296 + 6107109904 = 23536^2 + 78148^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8325917 + ... + 8326716.

Almost surely, 2^6661053200 is an apocalyptic number.

It is an amenable number.

6661053200 is an abundant number, since it is smaller than the sum of its proper divisors (9342128074).

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

6661053200 is a wasteful number, since it uses less digits than its factorization.

6661053200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652651 (or 16652640 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 6661053200 is about 81615.2755309936. The cubic root of 6661053200 is about 1881.5436619897.

Adding to 6661053200 its reverse (23501666), we get a palindrome (6684554866).

The spelling of 6661053200 in words is "six billion, six hundred sixty-one million, fifty-three thousand, two hundred".