216005101 has 8 divisors (see below), whose sum is σ = 232776320. Its totient is φ = 199256112.

The previous prime is 216005059. The next prime is 216005113. The reversal of 216005101 is 101500612.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 216005101 - 2⁹ = 216004589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216000101) 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, 18520 + ... + 27838.

It is an arithmetic number, because the mean of its divisors is an integer number (29097040).

Almost surely, 2^216005101 is an apocalyptic number.

It is an amenable number.

216005101 is a deficient number, since it is larger than the sum of its proper divisors (16771219).

216005101 is a wasteful number, since it uses less digits than its factorization.

216005101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 216005101 is about 14697.1119952187. Note that the first 3 decimals coincide. The cubic root of 216005101 is about 600.0047231110.

Adding to 216005101 its reverse (101500612), we get a palindrome (317505713).

The spelling of 216005101 in words is "two hundred sixteen million, five thousand, one hundred one".