16434843461 has 4 divisors (see below), whose sum is σ = 16594405152. Its totient is φ = 16275281772.

The previous prime is 16434843427. The next prime is 16434843527.

16434843461 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16434843461 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 (16434843661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79780691 + ... + 79780896.

It is an arithmetic number, because the mean of its divisors is an integer number (4148601288).

Almost surely, 2^16434843461 is an apocalyptic number.

It is an amenable number.

16434843461 is a deficient number, since it is larger than the sum of its proper divisors (159561691).

16434843461 is a wasteful number, since it uses less digits than its factorization.

16434843461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159561690.

The product of its digits is 663552, while the sum is 44.

The spelling of 16434843461 in words is "sixteen billion, four hundred thirty-four million, eight hundred forty-three thousand, four hundred sixty-one".