16616222 has 16 divisors (see below), whose sum is σ = 29984640. Its totient is φ = 6746328.

The previous prime is 16616221. The next prime is 16616251. The reversal of 16616222 is 22261661.

It is a junction number, because it is equal to n+sod(n) for n = 16616191 and 16616200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30968 + ... + 31499.

It is an arithmetic number, because the mean of its divisors is an integer number (1874040).

Almost surely, 2^16616222 is an apocalyptic number.

16616222 is a deficient number, since it is larger than the sum of its proper divisors (13368418).

16616222 is a wasteful number, since it uses less digits than its factorization.

16616222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62495.

The product of its digits is 1728, while the sum is 26.

The square root of 16616222 is about 4076.3000380247. The cubic root of 16616222 is about 255.1785088672.

Adding to 16616222 its reverse (22261661), we get a palindrome (38877883).

The spelling of 16616222 in words is "sixteen million, six hundred sixteen thousand, two hundred twenty-two".