6663265488 has 120 divisors (see below), whose sum is σ = 20999536896. Its totient is φ = 1954022400.

The previous prime is 6663265421. The next prime is 6663265489. The reversal of 6663265488 is 8845623666.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663265489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18745 + ... + 116952.

Almost surely, 2^6663265488 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 6663265488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10499768448).

6663265488 is an abundant number, since it is smaller than the sum of its proper divisors (14336271408).

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

6663265488 is a wasteful number, since it uses less digits than its factorization.

6663265488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135753 (or 135744 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The square root of 6663265488 is about 81628.8275549759. The cubic root of 6663265488 is about 1881.7519401504.

The spelling of 6663265488 in words is "six billion, six hundred sixty-three million, two hundred sixty-five thousand, four hundred eighty-eight".