99908668452672 has 168 divisors, whose sum is σ = 313671169024200. Its totient is φ = 30263071899648.

The previous prime is 99908668452601. The next prime is 99908668452709. The reversal of 99908668452672 is 27625486680999.

99908668452672 is a `hidden beast` number, since 9 + 9 + 9 + 0 + 8 + 6 + 6 + 84 + 526 + 7 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16801669832256 + 83106998620416 = 4098984^2 + 9116304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 99908668452591 and 99908668452600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175631397 + ... + 176199332.

Almost surely, 2^{99908668452672} is an apocalyptic number.

It is an amenable number.

99908668452672 is an abundant number, since it is smaller than the sum of its proper divisors (213762500571528).

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

99908668452672 is a wasteful number, since it uses less digits than its factorization.

99908668452672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351830793 (or 351830780 counting only the distinct ones).

The product of its (nonzero) digits is 5643509760, while the sum is 81.

The spelling of 99908668452672 in words is "ninety-nine trillion, nine hundred eight billion, six hundred sixty-eight million, four hundred fifty-two thousand, six hundred seventy-two".