185117222285 has 16 divisors (see below), whose sum is σ = 225845809200. Its totient is φ = 145643366400.

The previous prime is 185117222201. The next prime is 185117222299. The reversal of 185117222285 is 582222711581.

185117222285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 20005839364 + 165111382921 = 141442^2 + 406339^2 .

It is not a de Polignac number, because 185117222285 - 2⁸ = 185117222029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1154852 + ... + 1305341.

It is an arithmetic number, because the mean of its divisors is an integer number (14115363075).

Almost surely, 2^185117222285 is an apocalyptic number.

It is an amenable number.

185117222285 is a deficient number, since it is larger than the sum of its proper divisors (40728586915).

185117222285 is a wasteful number, since it uses less digits than its factorization.

185117222285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460448.

The product of its digits is 179200, while the sum is 44.

The spelling of 185117222285 in words is "one hundred eighty-five billion, one hundred seventeen million, two hundred twenty-two thousand, two hundred eighty-five".