216516423411 has 16 divisors (see below), whose sum is σ = 327589862400. Its totient is φ = 141273126504.

The previous prime is 216516423407. The next prime is 216516423433. The reversal of 216516423411 is 114324615612.

216516423411 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 1 + 642 + 3 + 4 + 1 + 1 = 666.

It is not a de Polignac number, because 216516423411 - 2² = 216516423407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216516423511) 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, 85308591 + ... + 85311128.

It is an arithmetic number, because the mean of its divisors is an integer number (20474366400).

Almost surely, 2^216516423411 is an apocalyptic number.

216516423411 is a deficient number, since it is larger than the sum of its proper divisors (111073438989).

216516423411 is a wasteful number, since it uses less digits than its factorization.

216516423411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170619775 (or 170619769 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 216516423411 in words is "two hundred sixteen billion, five hundred sixteen million, four hundred twenty-three thousand, four hundred eleven".