16442621503674 has 16 divisors (see below), whose sum is σ = 33010281957312. Its totient is φ = 5460034009568.

The previous prime is 16442621503673. The next prime is 16442621503729. The reversal of 16442621503674 is 47630512624461.

It is a super-3 number, since 3×16442621503674³ (a number of 41 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16442621503673) 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, 5209954539 + ... + 5209957694.

It is an arithmetic number, because the mean of its divisors is an integer number (2063142622332).

Almost surely, 2^{16442621503674} is an apocalyptic number.

16442621503674 is an abundant number, since it is smaller than the sum of its proper divisors (16567660453638).

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

16442621503674 is a wasteful number, since it uses less digits than its factorization.

16442621503674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10419912501.

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 16442621503674 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-one million, five hundred three thousand, six hundred seventy-four".