5555555554944 has 64 divisors (see below), whose sum is σ = 14903052907680. Its totient is φ = 1833516672000.

The previous prime is 5555555554933. The next prime is 5555555554949. The reversal of 5555555554944 is 4494555555555.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (5555555554949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71582962 + ... + 71660529.

Almost surely, 2^{5555555554944} is an apocalyptic number.

It is an amenable number.

5555555554944 is an abundant number, since it is smaller than the sum of its proper divisors (9347497352736).

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

5555555554944 is a wasteful number, since it uses less digits than its factorization.

5555555554944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143243609 (or 143243597 counting only the distinct ones).

The product of its digits is 1125000000, while the sum is 66.

The spelling of 5555555554944 in words is "five trillion, five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-four thousand, nine hundred forty-four".