16442742122613 has 12 divisors (see below), whose sum is σ = 23751872485068. Its totient is φ = 10961253478080.

The previous prime is 16442742122579. The next prime is 16442742122623. The reversal of 16442742122613 is 31622124724461.

16442742122613 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 2 + 7 + 4 + 2 + 1 + 22 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7677814766769 + 8764927355844 = 2770887^2 + 2960562^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16442742122613 is a prime.

It is a super-3 number, since 3×16442742122613³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442742122623) 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, 47702370 + ... + 48045827.

It is an arithmetic number, because the mean of its divisors is an integer number (1979322707089).

Almost surely, 2^{16442742122613} is an apocalyptic number.

It is an amenable number.

16442742122613 is a deficient number, since it is larger than the sum of its proper divisors (7309130362455).

16442742122613 is a wasteful number, since it uses less digits than its factorization.

16442742122613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95767284 (or 95767281 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The spelling of 16442742122613 in words is "sixteen trillion, four hundred forty-two billion, seven hundred forty-two million, one hundred twenty-two thousand, six hundred thirteen".