172943051066 has 8 divisors (see below), whose sum is σ = 259416574560. Its totient is φ = 86470859548.

The previous prime is 172943051059. The next prime is 172943051081. The reversal of 172943051066 is 660150349271.

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

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, 108875 + ... + 598113.

It is an arithmetic number, because the mean of its divisors is an integer number (32427071820).

Almost surely, 2^172943051066 is an apocalyptic number.

172943051066 is a deficient number, since it is larger than the sum of its proper divisors (86473523494).

172943051066 is a wasteful number, since it uses less digits than its factorization.

172943051066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665988.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 172943051066 in words is "one hundred seventy-two billion, nine hundred forty-three million, fifty-one thousand, sixty-six".