218056300855917 has 8 divisors (see below), whose sum is σ = 291263712456096. Its totient is φ = 145109878246512.

The previous prime is 218056300855907. The next prime is 218056300855927. The reversal of 218056300855917 is 719558003650812.

It is an interprime number because it is at equal distance from previous prime (218056300855907) and next prime (218056300855927).

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

It is not a de Polignac number, because 218056300855917 - 2¹⁰ = 218056300854893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218056300855907) 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, 65247245743 + ... + 65247249084.

It is an arithmetic number, because the mean of its divisors is an integer number (36407964057012).

Almost surely, 2^{218056300855917} is an apocalyptic number.

It is an amenable number.

218056300855917 is a deficient number, since it is larger than the sum of its proper divisors (73207411600179).

218056300855917 is a wasteful number, since it uses less digits than its factorization.

218056300855917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130494495387.

The product of its (nonzero) digits is 18144000, while the sum is 60.

The spelling of 218056300855917 in words is "two hundred eighteen trillion, fifty-six billion, three hundred million, eight hundred fifty-five thousand, nine hundred seventeen".