16442344036631 has 2 divisors, whose sum is σ = 16442344036632. Its totient is φ = 16442344036630.

The previous prime is 16442344036549. The next prime is 16442344036637. The reversal of 16442344036631 is 13663044324461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16442344036631 - 2³⁸ = 16167466129687 is a prime.

It is a super-3 number, since 3×16442344036631³ (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 a weakly prime, because it can be changed into another prime (16442344036637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221172018315 + 8221172018316.

It is an arithmetic number, because the mean of its divisors is an integer number (8221172018316).

Almost surely, 2^{16442344036631} is an apocalyptic number.

16442344036631 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442344036631 is an equidigital number, since it uses as much as digits as its factorization.

16442344036631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 47.

It can be divided in two parts, 1644234 and 4036631, that added together give a palindrome (5680865).

The spelling of 16442344036631 in words is "sixteen trillion, four hundred forty-two billion, three hundred forty-four million, thirty-six thousand, six hundred thirty-one".