181045222873143 has 16 divisors (see below), whose sum is σ = 243320006823936. Its totient is φ = 119733827391360.

The previous prime is 181045222873121. The next prime is 181045222873219. The reversal of 181045222873143 is 341378222540181.

It is not a de Polignac number, because 181045222873143 - 2¹⁰ = 181045222872119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181045222833143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21417346 + ... + 28649487.

It is an arithmetic number, because the mean of its divisors is an integer number (15207500426496).

Almost surely, 2^{181045222873143} is an apocalyptic number.

181045222873143 is a deficient number, since it is larger than the sum of its proper divisors (62274783950793).

181045222873143 is a wasteful number, since it uses less digits than its factorization.

181045222873143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50076454.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 181045222873143 in words is "one hundred eighty-one trillion, forty-five billion, two hundred twenty-two million, eight hundred seventy-three thousand, one hundred forty-three".