173102206721 has 8 divisors (see below), whose sum is σ = 183603789600. Its totient is φ = 162739717920.

The previous prime is 173102206691. The next prime is 173102206741. The reversal of 173102206721 is 127602201371.

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 173102206721 - 2¹⁴ = 173102190337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173102206741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34770956 + ... + 34775933.

It is an arithmetic number, because the mean of its divisors is an integer number (22950473700).

Almost surely, 2^173102206721 is an apocalyptic number.

It is an amenable number.

173102206721 is a deficient number, since it is larger than the sum of its proper divisors (10501582879).

173102206721 is a wasteful number, since it uses less digits than its factorization.

173102206721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69547039.

The product of its (nonzero) digits is 7056, while the sum is 32.

The spelling of 173102206721 in words is "one hundred seventy-three billion, one hundred two million, two hundred six thousand, seven hundred twenty-one".