6630999172 has 12 divisors (see below), whose sum is σ = 13261998400. Its totient is φ = 2841856776.

The previous prime is 6630999163. The next prime is 6630999173. The reversal of 6630999172 is 2719990366.

6630999172 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6630999173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118410672 + ... + 118410727.

Almost surely, 2^6630999172 is an apocalyptic number.

It is an amenable number.

6630999172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6630999172 is a wasteful number, since it uses less digits than its factorization.

6630999172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236821410 (or 236821408 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 6630999172 is about 81430.9472620821. The cubic root of 6630999172 is about 1878.7096143629.

The spelling of 6630999172 in words is "six billion, six hundred thirty million, nine hundred ninety-nine thousand, one hundred seventy-two".