99666608 has 20 divisors (see below), whose sum is σ = 195751608. Its totient is φ = 49150080.

The previous prime is 99666607. The next prime is 99666653. The reversal of 99666608 is 80666699.

It is a super-3 number, since 3×99666608³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (99666601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41498 + ... + 43833.

Almost surely, 2^99666608 is an apocalyptic number.

It is an amenable number.

99666608 is a deficient number, since it is larger than the sum of its proper divisors (96085000).

99666608 is a wasteful number, since it uses less digits than its factorization.

99666608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85412 (or 85406 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 99666608 is about 9983.3164830130. The cubic root of 99666608 is about 463.6424861983.

The spelling of 99666608 in words is "ninety-nine million, six hundred sixty-six thousand, six hundred eight".