6630531500 has 24 divisors (see below), whose sum is σ = 14481081888. Its totient is φ = 2652212400.

The previous prime is 6630531491. The next prime is 6630531511. The reversal of 6630531500 is 51350366.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6630032 + ... + 6631031.

It is an arithmetic number, because the mean of its divisors is an integer number (603378412).

Almost surely, 2^6630531500 is an apocalyptic number.

It is an amenable number.

6630531500 is an abundant number, since it is smaller than the sum of its proper divisors (7850550388).

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

6630531500 is a wasteful number, since it uses less digits than its factorization.

6630531500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13261082 (or 13261070 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 6630531500 is about 81428.0756250570. The cubic root of 6630531500 is about 1878.6654460298.

Adding to 6630531500 its reverse (51350366), we get a palindrome (6681881866).

The spelling of 6630531500 in words is "six billion, six hundred thirty million, five hundred thirty-one thousand, five hundred".