994271166 has 64 divisors (see below), whose sum is σ = 2529999360. Its totient is φ = 283530240.

The previous prime is 994271143. The next prime is 994271167. The reversal of 994271166 is 661172499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994271167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219646 + ... + 224126.

It is an arithmetic number, because the mean of its divisors is an integer number (39531240).

Almost surely, 2^994271166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994271166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264999680).

994271166 is an abundant number, since it is smaller than the sum of its proper divisors (1535728194).

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

994271166 is a wasteful number, since it uses less digits than its factorization.

994271166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086 (or 5080 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 994271166 is about 31532.0656792415. The cubic root of 994271166 is about 998.0867304007.

The spelling of 994271166 in words is "nine hundred ninety-four million, two hundred seventy-one thousand, one hundred sixty-six".