216812270067 has 8 divisors (see below), whose sum is σ = 290149754880. Its totient is φ = 144008149320.

The previous prime is 216812270009. The next prime is 216812270069. The reversal of 216812270067 is 760072218612.

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

It is not a de Polignac number, because 216812270067 - 2⁷ = 216812269939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216812270069) 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, 133340067 + ... + 133341692.

It is an arithmetic number, because the mean of its divisors is an integer number (36268719360).

Almost surely, 2^216812270067 is an apocalyptic number.

216812270067 is a deficient number, since it is larger than the sum of its proper divisors (73337484813).

216812270067 is a wasteful number, since it uses less digits than its factorization.

216812270067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266682033.

The product of its (nonzero) digits is 112896, while the sum is 42.

Adding to 216812270067 its reverse (760072218612), we get a palindrome (976884488679).

The spelling of 216812270067 in words is "two hundred sixteen billion, eight hundred twelve million, two hundred seventy thousand, sixty-seven".