218479161559 has 8 divisors (see below), whose sum is σ = 225677376000. Its totient is φ = 211290353400.

The previous prime is 218479161557. The next prime is 218479161577. The reversal of 218479161559 is 955161974812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 218479161559 - 2¹ = 218479161557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218479161557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2304337 + ... + 2397274.

It is an arithmetic number, because the mean of its divisors is an integer number (28209672000).

Almost surely, 2^218479161559 is an apocalyptic number.

218479161559 is a deficient number, since it is larger than the sum of its proper divisors (7198214441).

218479161559 is a wasteful number, since it uses less digits than its factorization.

218479161559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703141.

The product of its digits is 5443200, while the sum is 58.

The spelling of 218479161559 in words is "two hundred eighteen billion, four hundred seventy-nine million, one hundred sixty-one thousand, five hundred fifty-nine".