16091540352 has 160 divisors (see below), whose sum is σ = 49183610520. Its totient is φ = 5218753536.

The previous prime is 16091540327. The next prime is 16091540359. The reversal of 16091540352 is 25304519061.

16091540352 is a `hidden beast` number, since 1 + 60 + 9 + 1 + 540 + 3 + 52 = 666.

16091540352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (16091540359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 362643 + ... + 404589.

Almost surely, 2^16091540352 is an apocalyptic number.

16091540352 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 16091540352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24591805260).

16091540352 is an abundant number, since it is smaller than the sum of its proper divisors (33092070168).

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

16091540352 is an equidigital number, since it uses as much as digits as its factorization.

16091540352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42010 (or 41989 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 16091540352 in words is "sixteen billion, ninety-one million, five hundred forty thousand, three hundred fifty-two".