163445140630441 has 4 divisors (see below), whose sum is σ = 163669962007552. Its totient is φ = 163220319253332.

The previous prime is 163445140630381. The next prime is 163445140630459. The reversal of 163445140630441 is 144036041544361.

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 163445140630441 - 2²¹ = 163445138533289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163445140630391 and 163445140630400.

It is not an unprimeable number, because it can be changed into a prime (163445140631441) 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, 112410687465 + ... + 112410688918.

It is an arithmetic number, because the mean of its divisors is an integer number (40917490501888).

Almost surely, 2^{163445140630441} is an apocalyptic number.

It is an amenable number.

163445140630441 is a deficient number, since it is larger than the sum of its proper divisors (224821377111).

163445140630441 is an equidigital number, since it uses as much as digits as its factorization.

163445140630441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224821377110.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 163445140630441 in words is "one hundred sixty-three trillion, four hundred forty-five billion, one hundred forty million, six hundred thirty thousand, four hundred forty-one".