2218316155 has 16 divisors (see below), whose sum is σ = 2904979968. Its totient is φ = 1612764000.

The previous prime is 2218316153. The next prime is 2218316171. The reversal of 2218316155 is 5516138122.

It is not a de Polignac number, because 2218316155 - 2¹ = 2218316153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2218316155.

It is not an unprimeable number, because it can be changed into a prime (2218316153) 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, 221200 + ... + 231010.

It is an arithmetic number, because the mean of its divisors is an integer number (181561248).

Almost surely, 2^2218316155 is an apocalyptic number.

2218316155 is a deficient number, since it is larger than the sum of its proper divisors (686663813).

2218316155 is a wasteful number, since it uses less digits than its factorization.

2218316155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13938.

The product of its digits is 14400, while the sum is 34.

The square root of 2218316155 is about 47099.0037580414. The cubic root of 2218316155 is about 1304.1908451639.

The spelling of 2218316155 in words is "two billion, two hundred eighteen million, three hundred sixteen thousand, one hundred fifty-five".