216111210667007 has 16 divisors (see below), whose sum is σ = 217209171769824. Its totient is φ = 215013960000000.

The previous prime is 216111210666961. The next prime is 216111210667069. The reversal of 216111210667007 is 700766012111612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 216111210667007 - 2¹⁰ = 216111210665983 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 (216111210667207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10290509507 + ... + 10290530507.

It is an arithmetic number, because the mean of its divisors is an integer number (13575573235614).

Almost surely, 2^{216111210667007} is an apocalyptic number.

216111210667007 is a deficient number, since it is larger than the sum of its proper divisors (1097961102817).

216111210667007 is a wasteful number, since it uses less digits than its factorization.

216111210667007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35450.

The product of its (nonzero) digits is 42336, while the sum is 41.

Adding to 216111210667007 its reverse (700766012111612), we get a palindrome (916877222778619).

The spelling of 216111210667007 in words is "two hundred sixteen trillion, one hundred eleven billion, two hundred ten million, six hundred sixty-seven thousand, seven".