166111161166 has 8 divisors (see below), whose sum is σ = 249428199744. Its totient is φ = 82968427920.

The previous prime is 166111161157. The next prime is 166111161169. The reversal of 166111161166 is 661161111661.

166111161166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166111161169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43573950 + ... + 43577761.

It is an arithmetic number, because the mean of its divisors is an integer number (31178524968).

Almost surely, 2^166111161166 is an apocalyptic number.

166111161166 is a deficient number, since it is larger than the sum of its proper divisors (83317038578).

166111161166 is an equidigital number, since it uses as much as digits as its factorization.

166111161166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87152666.

The product of its digits is 7776, while the sum is 37.

The spelling of 166111161166 in words is "one hundred sixty-six billion, one hundred eleven million, one hundred sixty-one thousand, one hundred sixty-six".