16577289909 has 12 divisors (see below), whose sum is σ = 24022974976. Its totient is φ = 11015526312.

The previous prime is 16577289907. The next prime is 16577289919. The reversal of 16577289909 is 90998277561.

It is not a de Polignac number, because 16577289909 - 2¹ = 16577289907 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16577289907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2997109 + ... + 3002634.

Almost surely, 2^16577289909 is an apocalyptic number.

It is an amenable number.

16577289909 is a deficient number, since it is larger than the sum of its proper divisors (7445685067).

16577289909 is a wasteful number, since it uses less digits than its factorization.

16577289909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000056 (or 6000053 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 63.

The spelling of 16577289909 in words is "sixteen billion, five hundred seventy-seven million, two hundred eighty-nine thousand, nine hundred nine".