445616616544 has 48 divisors (see below), whose sum is σ = 957736604160. Its totient is φ = 202410437760.

The previous prime is 445616616509. The next prime is 445616616551.

445616616544 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 445616616491 and 445616616500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56077 + ... + 945715.

It is an arithmetic number, because the mean of its divisors is an integer number (19952845920).

Almost surely, 2^445616616544 is an apocalyptic number.

445616616544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

445616616544 is an abundant number, since it is smaller than the sum of its proper divisors (512119987616).

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

445616616544 is a wasteful number, since it uses less digits than its factorization.

445616616544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891083 (or 891075 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 52.

The spelling of 445616616544 in words is "four hundred forty-five billion, six hundred sixteen million, six hundred sixteen thousand, five hundred forty-four".