17155472223 has 4 divisors (see below), whose sum is σ = 22873962968. Its totient is φ = 11436981480.

The previous prime is 17155472149. The next prime is 17155472239. The reversal of 17155472223 is 32227455171.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 17155472223 - 2²⁶ = 17088363359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17155472623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2859245368 + ... + 2859245373.

It is an arithmetic number, because the mean of its divisors is an integer number (5718490742).

Almost surely, 2^17155472223 is an apocalyptic number.

17155472223 is a deficient number, since it is larger than the sum of its proper divisors (5718490745).

17155472223 is an equidigital number, since it uses as much as digits as its factorization.

17155472223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718490744.

The product of its digits is 117600, while the sum is 39.

The spelling of 17155472223 in words is "seventeen billion, one hundred fifty-five million, four hundred seventy-two thousand, two hundred twenty-three".