16086609889 has 9 divisors (see below), whose sum is σ = 18714028017. Its totient is φ = 13787761764.

The previous prime is 16086609881. The next prime is 16086609947. The reversal of 16086609889 is 98890668061.

The square root of 16086609889 is 126833.

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

It is not a de Polignac number, because 16086609889 - 2³ = 16086609881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16086609881) 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, 878772 + ... + 896890.

Almost surely, 2^16086609889 is an apocalyptic number.

16086609889 is the 126833-rd square number.

16086609889 is the 63417-th centered octagonal number.

It is an amenable number.

16086609889 is a deficient number, since it is larger than the sum of its proper divisors (2627418128).

16086609889 is an frugal number, since it uses more digits than its factorization.

16086609889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36252 (or 18126 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 16086609889 in words is "sixteen billion, eighty-six million, six hundred nine thousand, eight hundred eighty-nine".