16442144236454 has 16 divisors (see below), whose sum is σ = 24672373873056. Its totient is φ = 8218020091200.

The previous prime is 16442144236451. The next prime is 16442144236459. The reversal of 16442144236454 is 45463244124461.

It is a super-3 number, since 3×16442144236454³ (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 (16442144236451) 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 7 ways as a sum of consecutive naturals, for example, 72569954 + ... + 72796170.

It is an arithmetic number, because the mean of its divisors is an integer number (1542023367066).

Almost surely, 2^{16442144236454} is an apocalyptic number.

16442144236454 is a deficient number, since it is larger than the sum of its proper divisors (8230229636602).

16442144236454 is a wasteful number, since it uses less digits than its factorization.

16442144236454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239551.

The product of its digits is 8847360, while the sum is 50.

The spelling of 16442144236454 in words is "sixteen trillion, four hundred forty-two billion, one hundred forty-four million, two hundred thirty-six thousand, four hundred fifty-four".