555667889445 has 48 divisors (see below), whose sum is σ = 1001428187760. Its totient is φ = 284684424192.

The previous prime is 555667889423. The next prime is 555667889449. The reversal of 555667889445 is 544988766555.

555667889445 is a `hidden beast` number, since 5 + 55 + 66 + 78 + 8 + 9 + 445 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 148626441441 + 407041448004 = 385521^2 + 637998^2 .

It is not a de Polignac number, because 555667889445 - 2⁷ = 555667889317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555667889449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 823624 + ... + 1337793.

It is an arithmetic number, because the mean of its divisors is an integer number (20863087245).

Almost surely, 2^555667889445 is an apocalyptic number.

It is an amenable number.

555667889445 is a deficient number, since it is larger than the sum of its proper divisors (445760298315).

555667889445 is a wasteful number, since it uses less digits than its factorization.

555667889445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161654 (or 2161651 counting only the distinct ones).

The product of its digits is 1451520000, while the sum is 72.

The spelling of 555667889445 in words is "five hundred fifty-five billion, six hundred sixty-seven million, eight hundred eighty-nine thousand, four hundred forty-five".