6630549408 has 192 divisors, whose sum is σ = 22433080320. Its totient is φ = 1866053376.

The previous prime is 6630549407. The next prime is 6630549433. The reversal of 6630549408 is 8049450366.

6630549408 is a `hidden beast` number, since 6 + 63 + 0 + 549 + 40 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (6630549403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397035 + ... + 413397.

It is an arithmetic number, because the mean of its divisors is an integer number (116838960).

Almost surely, 2^6630549408 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 6630549408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11216540160).

6630549408 is an abundant number, since it is smaller than the sum of its proper divisors (15802530912).

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

6630549408 is a wasteful number, since it uses less digits than its factorization.

6630549408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16456 (or 16442 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 6630549408 is about 81428.1855870558. The cubic root of 6630549408 is about 1878.6671373528.

The spelling of 6630549408 in words is "six billion, six hundred thirty million, five hundred forty-nine thousand, four hundred eight".