16091316 has 36 divisors (see below), whose sum is σ = 43069572. Its totient is φ = 5048064.

The previous prime is 16091303. The next prime is 16091321. The reversal of 16091316 is 61319061.

16091316 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14791716 + 1299600 = 3846^2 + 1140^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×16091316² = 517860901223712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16091316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12535 + ... + 13758.

It is an arithmetic number, because the mean of its divisors is an integer number (1196377).

Almost surely, 2^16091316 is an apocalyptic number.

It is an amenable number.

16091316 is an abundant number, since it is smaller than the sum of its proper divisors (26978256).

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

16091316 is a wasteful number, since it uses less digits than its factorization.

16091316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26320 (or 26315 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 16091316 is about 4011.3982599587. The cubic root of 16091316 is about 252.4626798419.

The spelling of 16091316 in words is "sixteen million, ninety-one thousand, three hundred sixteen".