16072216 has 32 divisors (see below), whose sum is σ = 31764960. Its totient is φ = 7608832.

The previous prime is 16072211. The next prime is 16072241. The reversal of 16072216 is 61227061.

It is a super-2 number, since 2×16072216² = 516632254301312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16072211) 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 7 ways as a sum of consecutive naturals, for example, 20406 + ... + 21178.

It is an arithmetic number, because the mean of its divisors is an integer number (992655).

Almost surely, 2^16072216 is an apocalyptic number.

It is an amenable number.

16072216 is a deficient number, since it is larger than the sum of its proper divisors (15692744).

16072216 is a wasteful number, since it uses less digits than its factorization.

16072216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 16072216 is about 4009.0168370811. The cubic root of 16072216 is about 252.3627512774.

Adding to 16072216 its reverse (61227061), we get a palindrome (77299277).

The spelling of 16072216 in words is "sixteen million, seventy-two thousand, two hundred sixteen".