20353018168459 has 2 divisors, whose sum is σ = 20353018168460. Its totient is φ = 20353018168458.

The previous prime is 20353018168381. The next prime is 20353018168481. The reversal of 20353018168459 is 95486181035302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20353018168459 - 2¹⁹ = 20353017644171 is a prime.

It is a super-3 number, since 3×20353018168459³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20353018163459) by changing a digit.

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 as a sum of consecutive naturals, namely, 10176509084229 + 10176509084230.

It is an arithmetic number, because the mean of its divisors is an integer number (10176509084230).

Almost surely, 2^{20353018168459} is an apocalyptic number.

20353018168459 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353018168459 is an equidigital number, since it uses as much as digits as its factorization.

20353018168459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 20353018168459 in words is "twenty trillion, three hundred fifty-three billion, eighteen million, one hundred sixty-eight thousand, four hundred fifty-nine".