99840083984001 has 9 divisors (see below), whose sum is σ = 144213497942241. Its totient is φ = 66560036005332.

The previous prime is 99840083983963. The next prime is 99840083984041. The reversal of 99840083984001 is 10048938004899.

The square root of 99840083984001 is 9992001.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 99840083984001 - 2⁷ = 99840083983873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99840083984001.

It is not an unprimeable number, because it can be changed into a prime (99840083984041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28310670 + ... + 31641336.

Almost surely, 2^{99840083984001} is an apocalyptic number.

99840083984001 is the 9992001-st square number.

99840083984001 is the 4996001-st centered octagonal number.

It is an amenable number.

99840083984001 is a deficient number, since it is larger than the sum of its proper divisors (44373413958240).

99840083984001 is an frugal number, since it uses more digits than its factorization.

99840083984001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661340 (or 3330670 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 99840083984001 in words is "ninety-nine trillion, eight hundred forty billion, eighty-three million, nine hundred eighty-four thousand, one".