99684358944 has 48 divisors (see below), whose sum is σ = 261688154112. Its totient is φ = 33225997568.

The previous prime is 99684358919. The next prime is 99684358999. The reversal of 99684358944 is 44985348699.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412442 + ... + 2453414.

It is an arithmetic number, because the mean of its divisors is an integer number (5451836544).

Almost surely, 2^99684358944 is an apocalyptic number.

It is an amenable number.

99684358944 is an abundant number, since it is smaller than the sum of its proper divisors (162003795168).

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

99684358944 is a wasteful number, since it uses less digits than its factorization.

99684358944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66329 (or 66321 counting only the distinct ones).

The product of its digits is 268738560, while the sum is 69.

The spelling of 99684358944 in words is "ninety-nine billion, six hundred eighty-four million, three hundred fifty-eight thousand, nine hundred forty-four".