16448575504 has 15 divisors (see below), whose sum is σ = 31870109023. Its totient is φ = 8224031248.

The previous prime is 16448575501. The next prime is 16448575523. The reversal of 16448575504 is 40557584461.

The square root of 16448575504 is 128252.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×16448575504² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16448575501) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 496977 + ... + 529039.

Almost surely, 2^16448575504 is an apocalyptic number.

16448575504 is the 128252-nd square number.

It is an amenable number.

16448575504 is a deficient number, since it is larger than the sum of its proper divisors (15421533519).

16448575504 is an frugal number, since it uses more digits than its factorization.

16448575504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64134 (or 32065 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 49.

Multiplying 16448575504 by its sum of digits (49), we get a square (805980199696 = 897764²).

The spelling of 16448575504 in words is "sixteen billion, four hundred forty-eight million, five hundred seventy-five thousand, five hundred four".