166944344335 has 4 divisors (see below), whose sum is σ = 200333213208. Its totient is φ = 133555475464.

The previous prime is 166944344311. The next prime is 166944344351. The reversal of 166944344335 is 533443449661.

166944344335 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 533443449661 = 491 ⋅1086442871.

It is a cyclic number.

It is not a de Polignac number, because 166944344335 - 2⁷ = 166944344207 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16694434429 + ... + 16694434438.

It is an arithmetic number, because the mean of its divisors is an integer number (50083303302).

Almost surely, 2^166944344335 is an apocalyptic number.

166944344335 is a deficient number, since it is larger than the sum of its proper divisors (33388868873).

166944344335 is an equidigital number, since it uses as much as digits as its factorization.

166944344335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33388868872.

The product of its digits is 11197440, while the sum is 52.

The spelling of 166944344335 in words is "one hundred sixty-six billion, nine hundred forty-four million, three hundred forty-four thousand, three hundred thirty-five".