6663826980 has 72 divisors (see below), whose sum is σ = 20556244800. Its totient is φ = 1746898752.

The previous prime is 6663826969. The next prime is 6663826997. The reversal of 6663826980 is 896283666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303120 + ... + 324359.

It is an arithmetic number, because the mean of its divisors is an integer number (285503400).

Almost surely, 2^6663826980 is an apocalyptic number.

6663826980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6663826980 is an abundant number, since it is smaller than the sum of its proper divisors (13892417820).

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

6663826980 is a wasteful number, since it uses less digits than its factorization.

6663826980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627553 (or 627548 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The square root of 6663826980 is about 81632.2667821983. The cubic root of 6663826980 is about 1881.8047950649.

The spelling of 6663826980 in words is "six billion, six hundred sixty-three million, eight hundred twenty-six thousand, nine hundred eighty".