16504542136336 has 20 divisors (see below), whose sum is σ = 31977872326972. Its totient is φ = 8252187987456.

The previous prime is 16504542136267. The next prime is 16504542136361. The reversal of 16504542136336 is 63363124540561.

It can be written as a sum of positive squares in 2 ways, for example, as 8559720490000 + 7944821646336 = 2925700^2 + 2818656^2 .

It is a super-2 number, since 2×16504542136336² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16504542136336.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3537645 + ... + 6747148.

Almost surely, 2^{16504542136336} is an apocalyptic number.

16504542136336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16504542136336 is a deficient number, since it is larger than the sum of its proper divisors (15473330190636).

16504542136336 is a wasteful number, since it uses less digits than its factorization.

16504542136336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385098 (or 10385092 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 49.

Adding to 16504542136336 its reverse (63363124540561), we get a palindrome (79867666676897).

The spelling of 16504542136336 in words is "sixteen trillion, five hundred four billion, five hundred forty-two million, one hundred thirty-six thousand, three hundred thirty-six".