216432201 has 16 divisors (see below), whose sum is σ = 296806400. Its totient is φ = 140207760.

The previous prime is 216432179. The next prime is 216432221. The reversal of 216432201 is 102234612.

It is not a de Polignac number, because 216432201 - 2¹⁰ = 216431177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216432221) 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, 21456 + ... + 29886.

It is an arithmetic number, because the mean of its divisors is an integer number (18550400).

Almost surely, 2^216432201 is an apocalyptic number.

It is an amenable number.

216432201 is a deficient number, since it is larger than the sum of its proper divisors (80374199).

216432201 is a wasteful number, since it uses less digits than its factorization.

216432201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 216432201 is about 14711.6348853552. The cubic root of 216432201 is about 600.3999194926.

Adding to 216432201 its reverse (102234612), we get a palindrome (318666813).

The spelling of 216432201 in words is "two hundred sixteen million, four hundred thirty-two thousand, two hundred one".