18066127280173 has 32 divisors (see below), whose sum is σ = 21182141260800. Its totient is φ = 15087983988480.

The previous prime is 18066127280153. The next prime is 18066127280213. The reversal of 18066127280173 is 37108272166081.

It is a cyclic number.

It is not a de Polignac number, because 18066127280173 - 2¹³ = 18066127271981 is a prime.

It is a super-2 number, since 2×18066127280173² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18066127280173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18066127280153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289133211 + ... + 289195687.

It is an arithmetic number, because the mean of its divisors is an integer number (661941914400).

Almost surely, 2^{18066127280173} is an apocalyptic number.

It is an amenable number.

18066127280173 is a deficient number, since it is larger than the sum of its proper divisors (3116013980627).

18066127280173 is a wasteful number, since it uses less digits than its factorization.

18066127280173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67917.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 18066127280173 in words is "eighteen trillion, sixty-six billion, one hundred twenty-seven million, two hundred eighty thousand, one hundred seventy-three".