16432643610577 has 4 divisors (see below), whose sum is σ = 16444612034100. Its totient is φ = 16420675187056.

The previous prime is 16432643610569. The next prime is 16432643610601. The reversal of 16432643610577 is 77501634623461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10614277297936 + 5818366312641 = 3257956^2 + 2412129^2 .

It is a cyclic number.

It is not a de Polignac number, because 16432643610577 - 2³ = 16432643610569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16432643610527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5984209702 + ... + 5984212447.

It is an arithmetic number, because the mean of its divisors is an integer number (4111153008525).

Almost surely, 2^{16432643610577} is an apocalyptic number.

It is an amenable number.

16432643610577 is a deficient number, since it is larger than the sum of its proper divisors (11968423523).

16432643610577 is a wasteful number, since it uses less digits than its factorization.

16432643610577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11968423522.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 16432643610577 in words is "sixteen trillion, four hundred thirty-two billion, six hundred forty-three million, six hundred ten thousand, five hundred seventy-seven".