55543466566 has 96 divisors (see below), whose sum is σ = 100059624000. Its totient is φ = 23048847360.

The previous prime is 55543466551. The next prime is 55543466603. The reversal of 55543466566 is 66566434555.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159150160 + ... + 159150508.

It is an arithmetic number, because the mean of its divisors is an integer number (1042287750).

Almost surely, 2^55543466566 is an apocalyptic number.

55543466566 is a deficient number, since it is larger than the sum of its proper divisors (44516157434).

55543466566 is a wasteful number, since it uses less digits than its factorization.

55543466566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 775 counting only the distinct ones).

The product of its digits is 38880000, while the sum is 55.

The spelling of 55543466566 in words is "fifty-five billion, five hundred forty-three million, four hundred sixty-six thousand, five hundred sixty-six".