166071066 has 32 divisors (see below), whose sum is σ = 380497920. Its totient is φ = 47335536.

The previous prime is 166071053. The next prime is 166071067. The reversal of 166071066 is 660170661.

It is not an unprimeable number, because it can be changed into a prime (166071067) 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 15 ways as a sum of consecutive naturals, for example, 13935 + ... + 22941.

It is an arithmetic number, because the mean of its divisors is an integer number (11890560).

Almost surely, 2^166071066 is an apocalyptic number.

166071066 is an abundant number, since it is smaller than the sum of its proper divisors (214426854).

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

166071066 is a wasteful number, since it uses less digits than its factorization.

166071066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9458.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 166071066 is about 12886.8563272817. The cubic root of 166071066 is about 549.6648823541.

The spelling of 166071066 in words is "one hundred sixty-six million, seventy-one thousand, sixty-six".