9900066 has 16 divisors (see below), whose sum is σ = 21600288. Its totient is φ = 3000000.

The previous prime is 9900047. The next prime is 9900091. The reversal of 9900066 is 6600099.

It is a super-2 number, since 2×9900066² = 196022613608712, which contains 22 as substring.

9900066 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

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, 74935 + ... + 75066.

It is an arithmetic number, because the mean of its divisors is an integer number (1350018).

Almost surely, 2^9900066 is an apocalyptic number.

9900066 is an abundant number, since it is smaller than the sum of its proper divisors (11700222).

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

9900066 is a wasteful number, since it uses less digits than its factorization.

9900066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150017.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 9900066 is about 3146.4370325815. The cubic root of 9900066 is about 214.7233940629.

The spelling of 9900066 in words is "nine million, nine hundred thousand, sixty-six".