55168195545 has 24 divisors (see below), whose sum is σ = 97957189512. Its totient is φ = 28705401600.

The previous prime is 55168195543. The next prime is 55168195549. The reversal of 55168195545 is 54559186155.

55168195545 is a `hidden beast` number, since 5 + 5 + 1 + 6 + 8 + 1 + 95 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4580988489 + 50587207056 = 67683^2 + 224916^2 .

It is not a de Polignac number, because 55168195545 - 2¹ = 55168195543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55168195491 and 55168195500.

It is not an unprimeable number, because it can be changed into a prime (55168195543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14948886 + ... + 14952575.

It is an arithmetic number, because the mean of its divisors is an integer number (4081549563).

Almost surely, 2^55168195545 is an apocalyptic number.

It is an amenable number.

55168195545 is a deficient number, since it is larger than the sum of its proper divisors (42788993967).

55168195545 is a wasteful number, since it uses less digits than its factorization.

55168195545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29901513 (or 29901510 counting only the distinct ones).

The product of its digits is 5400000, while the sum is 54.

The spelling of 55168195545 in words is "fifty-five billion, one hundred sixty-eight million, one hundred ninety-five thousand, five hundred forty-five".