20353163255305 has 16 divisors (see below), whose sum is σ = 25711237261440. Its totient is φ = 15436766211328.

The previous prime is 20353163255263. The next prime is 20353163255311. The reversal of 20353163255305 is 50355236135302.

It is a cyclic number.

It is not a de Polignac number, because 20353163255305 - 2¹¹ = 20353163253257 is a prime.

It is a super-2 number, since 2×20353163255305² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 783102175 + ... + 783128164.

It is an arithmetic number, because the mean of its divisors is an integer number (1606952328840).

Almost surely, 2^{20353163255305} is an apocalyptic number.

It is an amenable number.

20353163255305 is a deficient number, since it is larger than the sum of its proper divisors (5358074006135).

20353163255305 is a wasteful number, since it uses less digits than its factorization.

20353163255305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566230480.

The product of its (nonzero) digits is 1215000, while the sum is 43.

The spelling of 20353163255305 in words is "twenty trillion, three hundred fifty-three billion, one hundred sixty-three million, two hundred fifty-five thousand, three hundred five".