216867161107 has 4 divisors (see below), whose sum is σ = 217098610456. Its totient is φ = 216635711760.

The previous prime is 216867161087. The next prime is 216867161111. The reversal of 216867161107 is 701161768612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216867161107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216867161197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115723269 + ... + 115725142.

It is an arithmetic number, because the mean of its divisors is an integer number (54274652614).

Almost surely, 2^216867161107 is an apocalyptic number.

216867161107 is a deficient number, since it is larger than the sum of its proper divisors (231449349).

216867161107 is an equidigital number, since it uses as much as digits as its factorization.

216867161107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231449348.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 216867161107 in words is "two hundred sixteen billion, eight hundred sixty-seven million, one hundred sixty-one thousand, one hundred seven".