5561606144 has 28 divisors (see below), whose sum is σ = 11122549764. Its totient is φ = 2780798976.

The previous prime is 5561606093. The next prime is 5561606159. The reversal of 5561606144 is 4416061655.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5561606098 and 5561606107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331262 + ... + 347645.

Almost surely, 2^5561606144 is an apocalyptic number.

It is an amenable number.

5561606144 is a deficient number, since it is larger than the sum of its proper divisors (5560943620).

5561606144 is an frugal number, since it uses more digits than its factorization.

5561606144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678933 (or 678909 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 5561606144 is about 74576.1767858879. The cubic root of 5561606144 is about 1771.7403529902.

Adding to 5561606144 its reverse (4416061655), we get a palindrome (9977667799).

The spelling of 5561606144 in words is "five billion, five hundred sixty-one million, six hundred six thousand, one hundred forty-four".