163812166 has 16 divisors (see below), whose sum is σ = 281302560. Its totient is φ = 70084800.

The previous prime is 163812161. The next prime is 163812193. The reversal of 163812166 is 661218361.

It is a happy number.

It is a super-2 number, since 2×163812166² = 53668851459223112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163812161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 18148.

It is an arithmetic number, because the mean of its divisors is an integer number (17581410).

Almost surely, 2^163812166 is an apocalyptic number.

163812166 is a deficient number, since it is larger than the sum of its proper divisors (117490394).

163812166 is a wasteful number, since it uses less digits than its factorization.

163812166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20079.

The product of its digits is 10368, while the sum is 34.

The square root of 163812166 is about 12798.9126881935. The cubic root of 163812166 is about 547.1613145472.

The spelling of 163812166 in words is "one hundred sixty-three million, eight hundred twelve thousand, one hundred sixty-six".