163505522550041 has 4 divisors (see below), whose sum is σ = 186863454342912. Its totient is φ = 140147590757172.

The previous prime is 163505522550011. The next prime is 163505522550043. The reversal of 163505522550041 is 140055225505361.

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.

It is a cyclic number.

It is not a de Polignac number, because 163505522550041 - 2¹⁴ = 163505522533657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163505522549974 and 163505522550001.

It is not an unprimeable number, because it can be changed into a prime (163505522550043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11678965896425 + ... + 11678965896438.

It is an arithmetic number, because the mean of its divisors is an integer number (46715863585728).

Almost surely, 2^{163505522550041} is an apocalyptic number.

It is an amenable number.

163505522550041 is a deficient number, since it is larger than the sum of its proper divisors (23357931792871).

163505522550041 is an equidigital number, since it uses as much as digits as its factorization.

163505522550041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23357931792870.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 163505522550041 in words is "one hundred sixty-three trillion, five hundred five billion, five hundred twenty-two million, five hundred fifty thousand, forty-one".