5558445680 has 20 divisors (see below), whose sum is σ = 12923386392. Its totient is φ = 2223378240.

The previous prime is 5558445677. The next prime is 5558445691. The reversal of 5558445680 is 865448555.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 34740206 + ... + 34740365.

Almost surely, 2^5558445680 is an apocalyptic number.

It is an amenable number.

5558445680 is an abundant number, since it is smaller than the sum of its proper divisors (7364940712).

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

5558445680 is a wasteful number, since it uses less digits than its factorization.

5558445680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69480584 (or 69480578 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 50.

The square root of 5558445680 is about 74554.9842733536. The cubic root of 5558445680 is about 1771.4046836133.

The spelling of 5558445680 in words is "five billion, five hundred fifty-eight million, four hundred forty-five thousand, six hundred eighty".