55366623506143 has 2 divisors, whose sum is σ = 55366623506144. Its totient is φ = 55366623506142.

The previous prime is 55366623506123. The next prime is 55366623506177. The reversal of 55366623506143 is 34160532666355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55366623506143 - 2¹⁷ = 55366623375071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55366623506123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27683311753071 + 27683311753072.

It is an arithmetic number, because the mean of its divisors is an integer number (27683311753072).

Almost surely, 2^{55366623506143} is an apocalyptic number.

55366623506143 is a deficient number, since it is larger than the sum of its proper divisors (1).

55366623506143 is an equidigital number, since it uses as much as digits as its factorization.

55366623506143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992000, while the sum is 55.

The spelling of 55366623506143 in words is "fifty-five trillion, three hundred sixty-six billion, six hundred twenty-three million, five hundred six thousand, one hundred forty-three".