218942674065 has 48 divisors (see below), whose sum is σ = 406023209280. Its totient is φ = 108810138240.

The previous prime is 218942674063. The next prime is 218942674099. The reversal of 218942674065 is 560476249812.

It is not a de Polignac number, because 218942674065 - 2¹ = 218942674063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (218942674063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2046807 + ... + 2151116.

It is an arithmetic number, because the mean of its divisors is an integer number (8458816860).

Almost surely, 2^218942674065 is an apocalyptic number.

It is an amenable number.

218942674065 is a deficient number, since it is larger than the sum of its proper divisors (187080535215).

218942674065 is a wasteful number, since it uses less digits than its factorization.

218942674065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198014 (or 4198011 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 218942674065 in words is "two hundred eighteen billion, nine hundred forty-two million, six hundred seventy-four thousand, sixty-five".