16956216 has 80 divisors (see below), whose sum is σ = 48090240. Its totient is φ = 5581440.

The previous prime is 16956211. The next prime is 16956223. The reversal of 16956216 is 61265961.

It is a super-2 number, since 2×16956216² = 575026522077312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16956211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 88681 + ... + 88871.

It is an arithmetic number, because the mean of its divisors is an integer number (601128).

Almost surely, 2^16956216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16956216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24045120).

16956216 is an abundant number, since it is smaller than the sum of its proper divisors (31134024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16956216 is a wasteful number, since it uses less digits than its factorization.

16956216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 333 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 16956216 is about 4117.7926125535. The cubic root of 16956216 is about 256.9072222353.

The spelling of 16956216 in words is "sixteen million, nine hundred fifty-six thousand, two hundred sixteen".