16116683964481 has 3 divisors (see below), whose sum is σ = 16116687979041. Its totient is φ = 16116679949922.

The previous prime is 16116683964413. The next prime is 16116683964497. The reversal of 16116683964481 is 18446938661161.

The square root of 16116683964481 is 4014559.

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 16116683964481 - 2⁹ = 16116683963969 is a prime.

It is a super-2 number, since 2×16116683964481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16116683964781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2007280 + ... + 6021838.

It is an arithmetic number, because the mean of its divisors is an integer number (5372229326347).

Almost surely, 2^{16116683964481} is an apocalyptic number.

16116683964481 is the 4014559-th square number.

16116683964481 is the 2007280-th centered octagonal number.

It is an amenable number.

16116683964481 is a deficient number, since it is larger than the sum of its proper divisors (4014560).

16116683964481 is an frugal number, since it uses more digits than its factorization.

16116683964481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029118 (or 4014559 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 64.

The spelling of 16116683964481 in words is "sixteen trillion, one hundred sixteen billion, six hundred eighty-three million, nine hundred sixty-four thousand, four hundred eighty-one".