30561220361444 has 12 divisors (see below), whose sum is σ = 53601249523500. Its totient is φ = 15246577640448.

The previous prime is 30561220361437. The next prime is 30561220361449. The reversal of 30561220361444 is 44416302216503.

It can be written as a sum of positive squares in 2 ways, for example, as 17589971521600 + 12971248839844 = 4194040^2 + 3601562^2 .

It is not an unprimeable number, because it can be changed into a prime (30561220361449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8508133049 + ... + 8508136640.

It is an arithmetic number, because the mean of its divisors is an integer number (4466770793625).

Almost surely, 2^{30561220361444} is an apocalyptic number.

It is an amenable number.

30561220361444 is a deficient number, since it is larger than the sum of its proper divisors (23040029162056).

30561220361444 is a wasteful number, since it uses less digits than its factorization.

30561220361444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17016270142 (or 17016270140 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

Adding to 30561220361444 its reverse (44416302216503), we get a palindrome (74977522577947).

The spelling of 30561220361444 in words is "thirty trillion, five hundred sixty-one billion, two hundred twenty million, three hundred sixty-one thousand, four hundred forty-four".