217167117011 has 8 divisors (see below), whose sum is σ = 233878223040. Its totient is φ = 200456860032.

The previous prime is 217167116989. The next prime is 217167117031. The reversal of 217167117011 is 110711761712.

It is a happy number.

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

It is not a de Polignac number, because 217167117011 - 2¹⁸ = 217166854867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (217167117031) 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, 380246 + ... + 760868.

It is an arithmetic number, because the mean of its divisors is an integer number (29234777880).

Almost surely, 2^217167117011 is an apocalyptic number.

217167117011 is a deficient number, since it is larger than the sum of its proper divisors (16711106029).

217167117011 is a wasteful number, since it uses less digits than its factorization.

217167117011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424525.

The product of its (nonzero) digits is 4116, while the sum is 35.

Adding to 217167117011 its reverse (110711761712), we get a palindrome (327878878723).

The spelling of 217167117011 in words is "two hundred seventeen billion, one hundred sixty-seven million, one hundred seventeen thousand, eleven".