99843295680 has 672 divisors, whose sum is σ = 385350690816. Its totient is φ = 24510283776.

The previous prime is 99843295661. The next prime is 99843295693. The reversal of 99843295680 is 8659234899.

99843295680 is a `hidden beast` number, since 9 + 9 + 8 + 43 + 29 + 568 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 62129437 + ... + 62131043.

It is an arithmetic number, because the mean of its divisors is an integer number (573438528).

Almost surely, 2^99843295680 is an apocalyptic number.

99843295680 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99843295680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192675345408).

99843295680 is an abundant number, since it is smaller than the sum of its proper divisors (285507395136).

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

99843295680 is a wasteful number, since it uses less digits than its factorization.

99843295680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 99843295680 in words is "ninety-nine billion, eight hundred forty-three million, two hundred ninety-five thousand, six hundred eighty".