16316485760689 has 3 divisors (see below), whose sum is σ = 16316489800057. Its totient is φ = 16316481721322.

The previous prime is 16316485760677. The next prime is 16316485760699. The reversal of 16316485760689 is 98606758461361.

The square root of 16316485760689 is 4039367.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 16316485760689 - 2¹¹ = 16316485758641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16316485760669) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2019684 + ... + 6059050.

Almost surely, 2^{16316485760689} is an apocalyptic number.

16316485760689 is the 4039367-th square number.

16316485760689 is the 2019684-th centered octagonal number.

It is an amenable number.

16316485760689 is a deficient number, since it is larger than the sum of its proper divisors (4039368).

16316485760689 is an frugal number, since it uses more digits than its factorization.

16316485760689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8078734 (or 4039367 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 70.

The spelling of 16316485760689 in words is "sixteen trillion, three hundred sixteen billion, four hundred eighty-five million, seven hundred sixty thousand, six hundred eighty-nine".