16529944438042 has 144 divisors (see below), whose sum is σ = 31416910705368. Its totient is φ = 6499978168320.

The previous prime is 16529944438039. The next prime is 16529944438057. The reversal of 16529944438042 is 24083444992561.

It can be written as a sum of positive squares in 12 ways, for example, as 8530657891441 + 7999286546601 = 2920729^2 + 2828301^2 .

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 71 ways as a sum of consecutive naturals, for example, 235632292 + ... + 235702432.

Almost surely, 2^{16529944438042} is an apocalyptic number.

16529944438042 is a deficient number, since it is larger than the sum of its proper divisors (14886966267326).

16529944438042 is a wasteful number, since it uses less digits than its factorization.

16529944438042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70401 (or 70377 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 61.

The spelling of 16529944438042 in words is "sixteen trillion, five hundred twenty-nine billion, nine hundred forty-four million, four hundred thirty-eight thousand, forty-two".