9911001166 has 32 divisors (see below), whose sum is σ = 16542724608. Its totient is φ = 4414993440.

The previous prime is 9911001151. The next prime is 9911001193. The reversal of 9911001166 is 6611001199.

It is a super-2 number, since 2×9911001166² (a number of 21 digits) contains 22 as substring.

9911001166 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141855 + ... + 1150501.

It is an arithmetic number, because the mean of its divisors is an integer number (516960144).

Almost surely, 2^9911001166 is an apocalyptic number.

9911001166 is a deficient number, since it is larger than the sum of its proper divisors (6631723442).

9911001166 is a wasteful number, since it uses less digits than its factorization.

9911001166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 9911001166 is about 99554.0113003991. The cubic root of 9911001166 is about 2148.0242289550.

The spelling of 9911001166 in words is "nine billion, nine hundred eleven million, one thousand, one hundred sixty-six".