218104430745 has 16 divisors (see below), whose sum is σ = 348972907392. Its totient is φ = 116320423680.

The previous prime is 218104430693. The next prime is 218104430759. The reversal of 218104430745 is 547034401812.

It is not a de Polignac number, because 218104430745 - 2²³ = 218096042137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566444 + ... + 1699986.

It is an arithmetic number, because the mean of its divisors is an integer number (21810806712).

Almost surely, 2^218104430745 is an apocalyptic number.

It is an amenable number.

218104430745 is a deficient number, since it is larger than the sum of its proper divisors (130868476647).

218104430745 is a wasteful number, since it uses less digits than its factorization.

218104430745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242432.

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 218104430745 in words is "two hundred eighteen billion, one hundred four million, four hundred thirty thousand, seven hundred forty-five".