16574814644 has 12 divisors (see below), whose sum is σ = 29014503168. Its totient is φ = 8284956600.

The previous prime is 16574814643. The next prime is 16574814647. The reversal of 16574814644 is 44641847561.

It is a junction number, because it is equal to n+sod(n) for n = 16574814592 and 16574814601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16574814643) 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 3 ways as a sum of consecutive naturals, for example, 597422 + ... + 624549.

It is an arithmetic number, because the mean of its divisors is an integer number (2417875264).

Almost surely, 2^16574814644 is an apocalyptic number.

It is an amenable number.

16574814644 is a deficient number, since it is larger than the sum of its proper divisors (12439688524).

16574814644 is a wasteful number, since it uses less digits than its factorization.

16574814644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225366 (or 1225364 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The spelling of 16574814644 in words is "sixteen billion, five hundred seventy-four million, eight hundred fourteen thousand, six hundred forty-four".