16632201 has 16 divisors (see below), whose sum is σ = 23566400. Its totient is φ = 10404288.

The previous prime is 16632191. The next prime is 16632223. The reversal of 16632201 is 10223661.

It is a happy number.

It is not a de Polignac number, because 16632201 - 2⁹ = 16631689 is a prime.

It is a super-2 number, since 2×16632201² = 553260220208802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16632241) 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, 4875 + ... + 7551.

It is an arithmetic number, because the mean of its divisors is an integer number (1472900).

Almost surely, 2^16632201 is an apocalyptic number.

It is an amenable number.

16632201 is a deficient number, since it is larger than the sum of its proper divisors (6934199).

16632201 is a wasteful number, since it uses less digits than its factorization.

16632201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 16632201 is about 4078.2595552515. The cubic root of 16632201 is about 255.2602801838.

Adding to 16632201 its reverse (10223661), we get a palindrome (26855862).

The spelling of 16632201 in words is "sixteen million, six hundred thirty-two thousand, two hundred one".