16632115 has 4 divisors (see below), whose sum is σ = 19958544. Its totient is φ = 13305688.

The previous prime is 16632113. The next prime is 16632139. The reversal of 16632115 is 51123661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51123661 = 19 ⋅2690719.

It is a cyclic number.

It is not a de Polignac number, because 16632115 - 2¹ = 16632113 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 16632115.

It is not an unprimeable number, because it can be changed into a prime (16632113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663207 + ... + 1663216.

It is an arithmetic number, because the mean of its divisors is an integer number (4989636).

Almost surely, 2^16632115 is an apocalyptic number.

16632115 is a deficient number, since it is larger than the sum of its proper divisors (3326429).

16632115 is an equidigital number, since it uses as much as digits as its factorization.

16632115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326428.

The product of its digits is 1080, while the sum is 25.

The square root of 16632115 is about 4078.2490115244. The cubic root of 16632115 is about 255.2598402255.

Adding to 16632115 its reverse (51123661), we get a palindrome (67755776).

The spelling of 16632115 in words is "sixteen million, six hundred thirty-two thousand, one hundred fifteen".