218206040095 has 4 divisors (see below), whose sum is σ = 261847248120. Its totient is φ = 174564832072.

The previous prime is 218206040093. The next prime is 218206040111. The reversal of 218206040095 is 590040602812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 218206040095 - 2¹ = 218206040093 is a prime.

It is a super-2 number, since 2×218206040095² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218206040093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21820604005 + ... + 21820604014.

It is an arithmetic number, because the mean of its divisors is an integer number (65461812030).

Almost surely, 2^218206040095 is an apocalyptic number.

218206040095 is a deficient number, since it is larger than the sum of its proper divisors (43641208025).

218206040095 is an equidigital number, since it uses as much as digits as its factorization.

218206040095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43641208024.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 218206040095 in words is "two hundred eighteen billion, two hundred six million, forty thousand, ninety-five".