994820166 has 24 divisors (see below), whose sum is σ = 2177668584. Its totient is φ = 328187520.

The previous prime is 994820159. The next prime is 994820201. The reversal of 994820166 is 661028499.

It is a happy number.

994820166 is a `hidden beast` number, since 9 + 9 + 482 + 0 + 166 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283140 + ... + 286631.

It is an arithmetic number, because the mean of its divisors is an integer number (90736191).

Almost surely, 2^994820166 is an apocalyptic number.

994820166 is an abundant number, since it is smaller than the sum of its proper divisors (1182848418).

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

994820166 is a wasteful number, since it uses less digits than its factorization.

994820166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569876 (or 569873 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 994820166 is about 31540.7699018271. The cubic root of 994820166 is about 998.2703988713.

The spelling of 994820166 in words is "nine hundred ninety-four million, eight hundred twenty thousand, one hundred sixty-six".