16856080 has 40 divisors (see below), whose sum is σ = 40033152. Its totient is φ = 6597504.

The previous prime is 16856071. The next prime is 16856089. The reversal of 16856080 is 8065861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16856071) and next prime (16856089).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (16856089) 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, 1519 + ... + 6001.

Almost surely, 2^16856080 is an apocalyptic number.

16856080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16856080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20016576).

16856080 is an abundant number, since it is smaller than the sum of its proper divisors (23177072).

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

16856080 is a wasteful number, since it uses less digits than its factorization.

16856080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543 (or 4537 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 16856080 is about 4105.6156663770. The cubic root of 16856080 is about 256.4004961687.

The spelling of 16856080 in words is "sixteen million, eight hundred fifty-six thousand, eighty".