216080171065 has 16 divisors (see below), whose sum is σ = 286276648896. Its totient is φ = 155255848000.

The previous prime is 216080171063. The next prime is 216080171101. The reversal of 216080171065 is 560171080612.

It is not a de Polignac number, because 216080171065 - 2¹ = 216080171063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216080171063) 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 15 ways as a sum of consecutive naturals, for example, 23662486 + ... + 23671615.

It is an arithmetic number, because the mean of its divisors is an integer number (17892290556).

Almost surely, 2^216080171065 is an apocalyptic number.

It is an amenable number.

216080171065 is a deficient number, since it is larger than the sum of its proper divisors (70196477831).

216080171065 is a wasteful number, since it uses less digits than its factorization.

216080171065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47334200.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 216080171065 in words is "two hundred sixteen billion, eighty million, one hundred seventy-one thousand, sixty-five".