16449557327 has 16 divisors (see below), whose sum is σ = 19177044480. Its totient is φ = 13818597408.

The previous prime is 16449557317. The next prime is 16449557339. The reversal of 16449557327 is 72375594461.

It is not a de Polignac number, because 16449557327 - 2⁸ = 16449557071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16449557317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3374 + ... + 181412.

It is an arithmetic number, because the mean of its divisors is an integer number (1198565280).

Almost surely, 2^16449557327 is an apocalyptic number.

16449557327 is a deficient number, since it is larger than the sum of its proper divisors (2727487153).

16449557327 is a wasteful number, since it uses less digits than its factorization.

16449557327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178310.

The product of its digits is 6350400, while the sum is 53.

The spelling of 16449557327 in words is "sixteen billion, four hundred forty-nine million, five hundred fifty-seven thousand, three hundred twenty-seven".