55543441860 has 36 divisors (see below), whose sum is σ = 168481774188. Its totient is φ = 14811584448.

The previous prime is 55543441859. The next prime is 55543441883. The reversal of 55543441860 is 6814434555.

55543441860 is a `hidden beast` number, since 5 + 5 + 543 + 4 + 41 + 8 + 60 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10663866756 + 44879575104 = 103266^2 + 211848^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×55543441860³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154287159 + ... + 154287518.

It is an arithmetic number, because the mean of its divisors is an integer number (4680049283).

Almost surely, 2^55543441860 is an apocalyptic number.

It is an amenable number.

55543441860 is an abundant number, since it is smaller than the sum of its proper divisors (112938332328).

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

55543441860 is a wasteful number, since it uses less digits than its factorization.

55543441860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308574692 (or 308574687 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 55543441860 in words is "fifty-five billion, five hundred forty-three million, four hundred forty-one thousand, eight hundred sixty".