166105556119 has 8 divisors (see below), whose sum is σ = 166601738160. Its totient is φ = 165609729600.

The previous prime is 166105556117. The next prime is 166105556203. The reversal of 166105556119 is 911655501661.

166105556119 is digitally balanced in base 2, 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 cyclic number.

It is not a de Polignac number, because 166105556119 - 2¹ = 166105556117 is a prime.

It is a super-2 number, since 2×166105556119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166105556117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 862084 + ... + 1037014.

It is an arithmetic number, because the mean of its divisors is an integer number (20825217270).

Almost surely, 2^166105556119 is an apocalyptic number.

166105556119 is a deficient number, since it is larger than the sum of its proper divisors (496182041).

166105556119 is a wasteful number, since it uses less digits than its factorization.

166105556119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177761.

The product of its (nonzero) digits is 243000, while the sum is 46.

The spelling of 166105556119 in words is "one hundred sixty-six billion, one hundred five million, five hundred fifty-six thousand, one hundred nineteen".