366545855965559 has 2 divisors, whose sum is σ = 366545855965560. Its totient is φ = 366545855965558.

The previous prime is 366545855965481. The next prime is 366545855965561. The reversal of 366545855965559 is 955569558545663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 366545855965559 - 2¹⁶ = 366545855900023 is a prime.

Together with 366545855965561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366545855965579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183272927982779 + 183272927982780.

It is an arithmetic number, because the mean of its divisors is an integer number (183272927982780).

Almost surely, 2^{366545855965559} is an apocalyptic number.

366545855965559 is a deficient number, since it is larger than the sum of its proper divisors (1).

366545855965559 is an equidigital number, since it uses as much as digits as its factorization.

366545855965559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220000000, while the sum is 86.

The spelling of 366545855965559 in words is "three hundred sixty-six trillion, five hundred forty-five billion, eight hundred fifty-five million, nine hundred sixty-five thousand, five hundred fifty-nine".