18094408599605 has 16 divisors (see below), whose sum is σ = 23429483627760. Its totient is φ = 13335773265408.

The previous prime is 18094408599593. The next prime is 18094408599647. The reversal of 18094408599605 is 50699580449081.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 490736676676 + 17603671922929 = 700526^2 + 4195673^2 .

It is a cyclic number.

It is not a de Polignac number, because 18094408599605 - 2⁶ = 18094408599541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273420272 + ... + 273486441.

It is an arithmetic number, because the mean of its divisors is an integer number (1464342726735).

Almost surely, 2^{18094408599605} is an apocalyptic number.

It is an amenable number.

18094408599605 is a deficient number, since it is larger than the sum of its proper divisors (5335075028155).

18094408599605 is a wasteful number, since it uses less digits than its factorization.

18094408599605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546907240.

The product of its (nonzero) digits is 111974400, while the sum is 68.

The spelling of 18094408599605 in words is "eighteen trillion, ninety-four billion, four hundred eight million, five hundred ninety-nine thousand, six hundred five".