99999999996 has 48 divisors (see below), whose sum is σ = 251318589984. Its totient is φ = 30764756736.

The previous prime is 99999999977. The next prime is 100000000003. The reversal of 99999999996 is 69999999999.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123546 + ... + 1209278.

It is an arithmetic number, because the mean of its divisors is an integer number (5235803958).

Almost surely, 2^99999999996 is an apocalyptic number.

It is an amenable number.

99999999996 is an abundant number, since it is smaller than the sum of its proper divisors (151318589988).

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

99999999996 is a wasteful number, since it uses less digits than its factorization.

99999999996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93230 (or 93228 counting only the distinct ones).

The product of its digits is 20920706406, while the sum is 96.

The spelling of 99999999996 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-six".