16328495089 has 9 divisors (see below), whose sum is σ = 16649298379. Its totient is φ = 16013765560.

The previous prime is 16328495081. The next prime is 16328495111. The reversal of 16328495089 is 98059482361.

The square root of 16328495089 is 127783.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11771165025 + 4557330064 = 108495^2 + 67508^2 .

It is not a de Polignac number, because 16328495089 - 2³ = 16328495081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16328495081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6771294 + ... + 6773704.

Almost surely, 2^16328495089 is an apocalyptic number.

16328495089 is the 127783-rd square number.

16328495089 is the 63892-nd centered octagonal number.

It is an amenable number.

16328495089 is a deficient number, since it is larger than the sum of its proper divisors (320803290).

16328495089 is an frugal number, since it uses more digits than its factorization.

16328495089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 16328495089 in words is "sixteen billion, three hundred twenty-eight million, four hundred ninety-five thousand, eighty-nine".