345218836185 has 48 divisors (see below), whose sum is σ = 609743160000. Its totient is φ = 180632679552.

The previous prime is 345218836153. The next prime is 345218836201. The reversal of 345218836185 is 581638812543.

345218836185 is a `hidden beast` number, since 3 + 4 + 5 + 2 + 18 + 8 + 3 + 618 + 5 = 666.

It is not a de Polignac number, because 345218836185 - 2⁵ = 345218836153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1194559 + ... + 1455131.

It is an arithmetic number, because the mean of its divisors is an integer number (12702982500).

Almost surely, 2^345218836185 is an apocalyptic number.

It is an amenable number.

345218836185 is a deficient number, since it is larger than the sum of its proper divisors (264524323815).

345218836185 is a wasteful number, since it uses less digits than its factorization.

345218836185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261142 (or 261139 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 345218836185 in words is "three hundred forty-five billion, two hundred eighteen million, eight hundred thirty-six thousand, one hundred eighty-five".