6663331056 has 20 divisors (see below), whose sum is σ = 17213605352. Its totient is φ = 2221110336.

The previous prime is 6663331019. The next prime is 6663331057. The reversal of 6663331056 is 6501333666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663331057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69409651 + ... + 69409746.

Almost surely, 2^6663331056 is an apocalyptic number.

It is an amenable number.

6663331056 is an abundant number, since it is smaller than the sum of its proper divisors (10550274296).

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

6663331056 is a wasteful number, since it uses less digits than its factorization.

6663331056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138819408 (or 138819402 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 39.

The square root of 6663331056 is about 81629.2291768090. The cubic root of 6663331056 is about 1881.7581124147.

The spelling of 6663331056 in words is "six billion, six hundred sixty-three million, three hundred thirty-one thousand, fifty-six".