9994441166 has 8 divisors (see below), whose sum is σ = 15124331664. Its totient is φ = 4952997280.

The previous prime is 9994441157. The next prime is 9994441201. The reversal of 9994441166 is 6611444999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 22111370 + ... + 22111821.

It is an arithmetic number, because the mean of its divisors is an integer number (1890541458).

Almost surely, 2^9994441166 is an apocalyptic number.

9994441166 is a deficient number, since it is larger than the sum of its proper divisors (5129890498).

9994441166 is a wasteful number, since it uses less digits than its factorization.

9994441166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44223306.

The product of its digits is 1679616, while the sum is 53.

The square root of 9994441166 is about 99972.2019663466. The cubic root of 9994441166 is about 2154.0354112117.

The spelling of 9994441166 in words is "nine billion, nine hundred ninety-four million, four hundred forty-one thousand, one hundred sixty-six".