166011665066 has 32 divisors (see below), whose sum is σ = 272867952000. Its totient is φ = 75282022080.

The previous prime is 166011665033. The next prime is 166011665087. The reversal of 166011665066 is 660566110661.

166011665066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400585 + ... + 1514483.

It is an arithmetic number, because the mean of its divisors is an integer number (8527123500).

Almost surely, 2^166011665066 is an apocalyptic number.

166011665066 is a deficient number, since it is larger than the sum of its proper divisors (106856286934).

166011665066 is a wasteful number, since it uses less digits than its factorization.

166011665066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114894.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 166011665066 in words is "one hundred sixty-six billion, eleven million, six hundred sixty-five thousand, sixty-six".