55666667873 has 2 divisors, whose sum is σ = 55666667874. Its totient is φ = 55666667872.

The previous prime is 55666667867. The next prime is 55666667911. The reversal of 55666667873 is 37876666655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55577119504 + 89548369 = 235748^2 + 9463^2 .

It is a cyclic number.

It is not a de Polignac number, because 55666667873 - 2¹⁴ = 55666651489 is a prime.

It is not a weakly prime, because it can be changed into another prime (55666660873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27833333936 + 27833333937.

It is an arithmetic number, because the mean of its divisors is an integer number (27833333937).

Almost surely, 2^55666667873 is an apocalyptic number.

It is an amenable number.

55666667873 is a deficient number, since it is larger than the sum of its proper divisors (1).

55666667873 is an equidigital number, since it uses as much as digits as its factorization.

55666667873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 228614400, while the sum is 65.

The spelling of 55666667873 in words is "fifty-five billion, six hundred sixty-six million, six hundred sixty-seven thousand, eight hundred seventy-three".