17790055055065 has 4 divisors (see below), whose sum is σ = 21348066066084. Its totient is φ = 14232044044048.

The previous prime is 17790055055057. The next prime is 17790055055131. The reversal of 17790055055065 is 56055055009771.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1866794818249 + 15923260236816 = 1366307^2 + 3990396^2 .

It is a cyclic number.

It is not a de Polignac number, because 17790055055065 - 2³ = 17790055055057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17790055054997 and 17790055055015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779005505502 + ... + 1779005505511.

It is an arithmetic number, because the mean of its divisors is an integer number (5337016516521).

Almost surely, 2^{17790055055065} is an apocalyptic number.

It is an amenable number.

17790055055065 is a deficient number, since it is larger than the sum of its proper divisors (3558011011019).

17790055055065 is an equidigital number, since it uses as much as digits as its factorization.

17790055055065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558011011018.

The product of its (nonzero) digits is 8268750, while the sum is 55.

The spelling of 17790055055065 in words is "seventeen trillion, seven hundred ninety billion, fifty-five million, fifty-five thousand, sixty-five".