16442144611431 has 64 divisors (see below), whose sum is σ = 29555933184000. Its totient is φ = 7867898703360.

The previous prime is 16442144611423. The next prime is 16442144611469. The reversal of 16442144611431 is 13411644124461.

It is not a de Polignac number, because 16442144611431 - 2³ = 16442144611423 is a prime.

It is a super-3 number, since 3×16442144611431³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442144611421) 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 63 ways as a sum of consecutive naturals, for example, 44357431 + ... + 44726568.

It is an arithmetic number, because the mean of its divisors is an integer number (461811456000).

Almost surely, 2^{16442144611431} is an apocalyptic number.

16442144611431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16442144611431 is a deficient number, since it is larger than the sum of its proper divisors (13113788572569).

16442144611431 is a wasteful number, since it uses less digits than its factorization.

16442144611431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89084084.

The product of its digits is 221184, while the sum is 42.

Adding to 16442144611431 its reverse (13411644124461), we get a palindrome (29853788735892).

The spelling of 16442144611431 in words is "sixteen trillion, four hundred forty-two billion, one hundred forty-four million, six hundred eleven thousand, four hundred thirty-one".