163455769361 has 4 divisors (see below), whose sum is σ = 163456738032. Its totient is φ = 163454800692.

The previous prime is 163455769357. The next prime is 163455769381. The reversal of 163455769361 is 163967554361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 163455769361 - 2² = 163455769357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163455769297 and 163455769306.

It is not an unprimeable number, because it can be changed into a prime (163455769381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157871 + ... + 593156.

It is an arithmetic number, because the mean of its divisors is an integer number (40864184508).

Almost surely, 2^163455769361 is an apocalyptic number.

It is an amenable number.

163455769361 is a deficient number, since it is larger than the sum of its proper divisors (968671).

163455769361 is an equidigital number, since it uses as much as digits as its factorization.

163455769361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968670.

The product of its digits is 12247200, while the sum is 56.

The spelling of 163455769361 in words is "one hundred sixty-three billion, four hundred fifty-five million, seven hundred sixty-nine thousand, three hundred sixty-one".