16442253748536 has 192 divisors, whose sum is σ = 52837689273600. Its totient is φ = 4171396078080.

The previous prime is 16442253748489. The next prime is 16442253748573. The reversal of 16442253748536 is 63584735224461.

It is a happy number.

It is a super-3 number, since 3×16442253748536³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16442253748536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8531101 + ... + 10279308.

It is an arithmetic number, because the mean of its divisors is an integer number (275196298300).

Almost surely, 2^{16442253748536} is an apocalyptic number.

It is an amenable number.

16442253748536 is an abundant number, since it is smaller than the sum of its proper divisors (36395435525064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16442253748536 is a wasteful number, since it uses less digits than its factorization.

16442253748536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18810490 (or 18810475 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 60.

The spelling of 16442253748536 in words is "sixteen trillion, four hundred forty-two billion, two hundred fifty-three million, seven hundred forty-eight thousand, five hundred thirty-six".