555521044144 has 20 divisors (see below), whose sum is σ = 1174169480040. Its totient is φ = 252509565440.

The previous prime is 555521043881. The next prime is 555521044153. The reversal of 555521044144 is 441440125555.

It is a junction number, because it is equal to n+sod(n) for n = 555521044097 and 555521044106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578184609 + ... + 1578184960.

It is an arithmetic number, because the mean of its divisors is an integer number (58708474002).

Almost surely, 2^555521044144 is an apocalyptic number.

It is an amenable number.

555521044144 is an abundant number, since it is smaller than the sum of its proper divisors (618648435896).

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

555521044144 is a wasteful number, since it uses less digits than its factorization.

555521044144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156369588 (or 3156369582 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

Adding to 555521044144 its reverse (441440125555), we get a palindrome (996961169699).

The spelling of 555521044144 in words is "five hundred fifty-five billion, five hundred twenty-one million, forty-four thousand, one hundred forty-four".