17128361255 has 4 divisors (see below), whose sum is σ = 20554033512. Its totient is φ = 13702689000.

The previous prime is 17128361249. The next prime is 17128361267. The reversal of 17128361255 is 55216382171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55216382171 = 42953 ⋅1285507.

It is not a de Polignac number, because 17128361255 - 2⁶ = 17128361191 is a prime.

It is a Duffinian number.

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, 1712836121 + ... + 1712836130.

It is an arithmetic number, because the mean of its divisors is an integer number (5138508378).

Almost surely, 2^17128361255 is an apocalyptic number.

17128361255 is a deficient number, since it is larger than the sum of its proper divisors (3425672257).

17128361255 is an equidigital number, since it uses as much as digits as its factorization.

17128361255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425672256.

The product of its digits is 100800, while the sum is 41.

The spelling of 17128361255 in words is "seventeen billion, one hundred twenty-eight million, three hundred sixty-one thousand, two hundred fifty-five".