16504951051144 has 16 divisors (see below), whose sum is σ = 30976741400220. Its totient is φ = 8244486677760.

The previous prime is 16504951051139. The next prime is 16504951051157. The reversal of 16504951051144 is 44115015940561.

It can be written as a sum of positive squares in 2 ways, for example, as 11386777824900 + 5118173226244 = 3374430^2 + 2262338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16504951051094 and 16504951051103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 998597197 + ... + 998613724.

Almost surely, 2^{16504951051144} is an apocalyptic number.

It is an amenable number.

16504951051144 is a deficient number, since it is larger than the sum of its proper divisors (14471790349076).

16504951051144 is a wasteful number, since it uses less digits than its factorization.

16504951051144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997211960 (or 1997211956 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 16504951051144 in words is "sixteen trillion, five hundred four billion, nine hundred fifty-one million, fifty-one thousand, one hundred forty-four".