16680027 has 16 divisors (see below), whose sum is σ = 27372800. Its totient is φ = 8798112.

The previous prime is 16680019. The next prime is 16680029. The reversal of 16680027 is 72008661.

It is a happy number.

It is not a de Polignac number, because 16680027 - 2³ = 16680019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16679976 and 16680003.

It is not an unprimeable number, because it can be changed into a prime (16680029) 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, 30277 + ... + 30822.

It is an arithmetic number, because the mean of its divisors is an integer number (1710800).

Almost surely, 2^16680027 is an apocalyptic number.

16680027 is a deficient number, since it is larger than the sum of its proper divisors (10692773).

16680027 is a wasteful number, since it uses less digits than its factorization.

16680027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61122.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 16680027 is about 4084.1188768203. The cubic root of 16680027 is about 255.5047135643.

Adding to 16680027 its reverse (72008661), we get a palindrome (88688688).

The spelling of 16680027 in words is "sixteen million, six hundred eighty thousand, twenty-seven".