16327985445 has 24 divisors (see below), whose sum is σ = 29791413600. Its totient is φ = 8249929056.

The previous prime is 16327985437. The next prime is 16327985447. The reversal of 16327985445 is 54458972361.

It is a happy number.

16327985445 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 7 + 98 + 544 + 5 = 666.

16327985445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16327985445 - 2³ = 16327985437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16327985391 and 16327985400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16327985447) 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 23 ways as a sum of consecutive naturals, for example, 9547675 + ... + 9549384.

It is an arithmetic number, because the mean of its divisors is an integer number (1241308900).

Almost surely, 2^16327985445 is an apocalyptic number.

16327985445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16327985445 is a deficient number, since it is larger than the sum of its proper divisors (13463428155).

16327985445 is a wasteful number, since it uses less digits than its factorization.

16327985445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19097089 (or 19097086 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 16327985445 in words is "sixteen billion, three hundred twenty-seven million, nine hundred eighty-five thousand, four hundred forty-five".