99966656 has 28 divisors (see below), whose sum is σ = 198702168. Its totient is φ = 49900032.

The previous prime is 99966631. The next prime is 99966673. The reversal of 99966656 is 65666999.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59135 + ... + 60801.

It is an arithmetic number, because the mean of its divisors is an integer number (7096506).

Almost surely, 2^99966656 is an apocalyptic number.

It is an amenable number.

99966656 is a deficient number, since it is larger than the sum of its proper divisors (98735512).

99966656 is a wasteful number, since it uses less digits than its factorization.

99966656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616 (or 2606 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 56.

The square root of 99966656 is about 9998.3326609990. The cubic root of 99966656 is about 464.1072879135.

The spelling of 99966656 in words is "ninety-nine million, nine hundred sixty-six thousand, six hundred fifty-six".