9991648210224 has 80 divisors (see below), whose sum is σ = 27269942469120. Its totient is φ = 3147283641600.

The previous prime is 9991648210211. The next prime is 9991648210277. The reversal of 9991648210224 is 4220128461999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76295302 + ... + 76426149.

It is an arithmetic number, because the mean of its divisors is an integer number (340874280864).

Almost surely, 2^{9991648210224} is an apocalyptic number.

9991648210224 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

9991648210224 is an abundant number, since it is smaller than the sum of its proper divisors (17278294258896).

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

9991648210224 is a wasteful number, since it uses less digits than its factorization.

9991648210224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152721538 (or 152721532 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 9991648210224 in words is "nine trillion, nine hundred ninety-one billion, six hundred forty-eight million, two hundred ten thousand, two hundred twenty-four".