163187166 has 16 divisors (see below), whose sum is σ = 326507904. Its totient is φ = 54373464.

The previous prime is 163187161. The next prime is 163187173. The reversal of 163187166 is 661781361.

It is a super-2 number, since 2×163187166² = 53260102294223112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163187161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17985 + ... + 25491.

It is an arithmetic number, because the mean of its divisors is an integer number (20406744).

Almost surely, 2^163187166 is an apocalyptic number.

163187166 is an abundant number, since it is smaller than the sum of its proper divisors (163320738).

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

163187166 is a wasteful number, since it uses less digits than its factorization.

163187166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11135.

The product of its digits is 36288, while the sum is 39.

The square root of 163187166 is about 12774.4732181018. The cubic root of 163187166 is about 546.4645578638.

The spelling of 163187166 in words is "one hundred sixty-three million, one hundred eighty-seven thousand, one hundred sixty-six".