216618130201 has 24 divisors (see below), whose sum is σ = 252160594560. Its totient is φ = 185302212480.

The previous prime is 216618130193. The next prime is 216618130217. The reversal of 216618130201 is 102031816612.

It is not a de Polignac number, because 216618130201 - 2³ = 216618130193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216618130241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13730820 + ... + 13746586.

It is an arithmetic number, because the mean of its divisors is an integer number (10506691440).

Almost surely, 2^216618130201 is an apocalyptic number.

It is an amenable number.

216618130201 is a deficient number, since it is larger than the sum of its proper divisors (35542464359).

216618130201 is a wasteful number, since it uses less digits than its factorization.

216618130201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22485 (or 22474 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 216618130201 its reverse (102031816612), we get a palindrome (318649946813).

The spelling of 216618130201 in words is "two hundred sixteen billion, six hundred eighteen million, one hundred thirty thousand, two hundred one".