173406666238 has 8 divisors (see below), whose sum is σ = 280118460888. Its totient is φ = 80033845944.

The previous prime is 173406666053. The next prime is 173406666241. The reversal of 173406666238 is 832666604371.

173406666238 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3334743556 + ... + 3334743607.

It is an arithmetic number, because the mean of its divisors is an integer number (35014807611).

Almost surely, 2^173406666238 is an apocalyptic number.

173406666238 is a deficient number, since it is larger than the sum of its proper divisors (106711794650).

173406666238 is a wasteful number, since it uses less digits than its factorization.

173406666238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6669487178.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 173406666238 in words is "one hundred seventy-three billion, four hundred six million, six hundred sixty-six thousand, two hundred thirty-eight".