16091712 has 168 divisors, whose sum is σ = 56952896. Its totient is φ = 4230144.

The previous prime is 16091687. The next prime is 16091717. The reversal of 16091712 is 21719061.

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (16091717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52263 + ... + 52569.

Almost surely, 2^16091712 is an apocalyptic number.

16091712 is a gapful number since it is divisible by the number (12) 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 16091712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28476448).

16091712 is an abundant number, since it is smaller than the sum of its proper divisors (40861184).

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

16091712 is a wasteful number, since it uses less digits than its factorization.

16091712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 16091712 is about 4011.4476190024. The cubic root of 16091712 is about 252.4647508223.

It can be divided in two parts, 1609 and 1712, that added together give a triangular number (3321 = T₈₁).

The spelling of 16091712 in words is "sixteen million, ninety-one thousand, seven hundred twelve".