16012720 has 20 divisors (see below), whose sum is σ = 37229760. Its totient is φ = 6405056.

The previous prime is 16012699. The next prime is 16012721. The reversal of 16012720 is 2721061.

16012720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (16012721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100000 + ... + 100159.

It is an arithmetic number, because the mean of its divisors is an integer number (1861488).

Almost surely, 2^16012720 is an apocalyptic number.

16012720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16012720 is an abundant number, since it is smaller than the sum of its proper divisors (21217040).

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

16012720 is a wasteful number, since it uses less digits than its factorization.

16012720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200172 (or 200166 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 16012720 is about 4001.5896841131. The cubic root of 16012720 is about 252.0509681068.

Adding to 16012720 its reverse (2721061), we get a palindrome (18733781).

It can be divided in two parts, 160 and 12720, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 16012720 in words is "sixteen million, twelve thousand, seven hundred twenty".