5698646660218 has 4 divisors (see below), whose sum is σ = 8547969990330. Its totient is φ = 2849323330108.

The previous prime is 5698646660183. The next prime is 5698646660219. The reversal of 5698646660218 is 8120666468965.

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

It can be written as a sum of positive squares in only one way, i.e., 5645789431569 + 52857228649 = 2376087^2 + 229907^2 .

It is not an unprimeable number, because it can be changed into a prime (5698646660219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1424661665053 + ... + 1424661665056.

Almost surely, 2^{5698646660218} is an apocalyptic number.

5698646660218 is a deficient number, since it is larger than the sum of its proper divisors (2849323330112).

5698646660218 is a wasteful number, since it uses less digits than its factorization.

5698646660218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849323330111.

The product of its (nonzero) digits is 179159040, while the sum is 67.

The spelling of 5698646660218 in words is "five trillion, six hundred ninety-eight billion, six hundred forty-six million, six hundred sixty thousand, two hundred eighteen".