216611242169 has 16 divisors (see below), whose sum is σ = 248727024000. Its totient is φ = 184788824064.

The previous prime is 216611242123. The next prime is 216611242187. The reversal of 216611242169 is 961242116612.

It is a cyclic number.

It is not a de Polignac number, because 216611242169 - 2²⁰ = 216610193593 is a prime.

It is a super-3 number, since 3×216611242169³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (216611242769) 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, 5269307 + ... + 5310255.

It is an arithmetic number, because the mean of its divisors is an integer number (15545439000).

Almost surely, 2^216611242169 is an apocalyptic number.

It is an amenable number.

216611242169 is a deficient number, since it is larger than the sum of its proper divisors (32115781831).

216611242169 is a wasteful number, since it uses less digits than its factorization.

216611242169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44512.

The product of its digits is 62208, while the sum is 41.

The spelling of 216611242169 in words is "two hundred sixteen billion, six hundred eleven million, two hundred forty-two thousand, one hundred sixty-nine".