16671122 has 8 divisors (see below), whose sum is σ = 26930316. Its totient is φ = 7694352.

The previous prime is 16671121. The next prime is 16671157. The reversal of 16671122 is 22117661.

It can be written as a sum of positive squares in 2 ways, for example, as 16168441 + 502681 = 4021^2 + 709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 641197 = 16671122 / (1 + 6 + 6 + 7 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 16671091 and 16671100.

It is not an unprimeable number, because it can be changed into a prime (16671121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320573 + ... + 320624.

Almost surely, 2^16671122 is an apocalyptic number.

16671122 is a deficient number, since it is larger than the sum of its proper divisors (10259194).

16671122 is a wasteful number, since it uses less digits than its factorization.

16671122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641212.

The product of its digits is 1008, while the sum is 26.

The square root of 16671122 is about 4083.0285328418. The cubic root of 16671122 is about 255.4592365297.

Adding to 16671122 its reverse (22117661), we get a palindrome (38788783).

The spelling of 16671122 in words is "sixteen million, six hundred seventy-one thousand, one hundred twenty-two".