218066920959 has 8 divisors (see below), whose sum is σ = 290768007600. Its totient is φ = 145371890816.

The previous prime is 218066920943. The next prime is 218066920987. The reversal of 218066920959 is 959029660812.

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 218066920959 - 2⁴ = 218066920943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 218066920899 and 218066920908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218066920999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429434 + ... + 1574615.

It is an arithmetic number, because the mean of its divisors is an integer number (36346000950).

Almost surely, 2^218066920959 is an apocalyptic number.

218066920959 is a deficient number, since it is larger than the sum of its proper divisors (72701086641).

218066920959 is a wasteful number, since it uses less digits than its factorization.

218066920959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028249.

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 218066920959 in words is "two hundred eighteen billion, sixty-six million, nine hundred twenty thousand, nine hundred fifty-nine".