163624205243 has 4 divisors (see below), whose sum is σ = 167105571360. Its totient is φ = 160142839128.

The previous prime is 163624205231. The next prime is 163624205273. The reversal of 163624205243 is 342502426361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342502426361 = 25717 ⋅13318133.

It is a cyclic number.

It is not a de Polignac number, because 163624205243 - 2⁶ = 163624205179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163624205197 and 163624205206.

It is not an unprimeable number, because it can be changed into a prime (163624205273) 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, 1740682988 + ... + 1740683081.

It is an arithmetic number, because the mean of its divisors is an integer number (41776392840).

Almost surely, 2^163624205243 is an apocalyptic number.

163624205243 is a deficient number, since it is larger than the sum of its proper divisors (3481366117).

163624205243 is an equidigital number, since it uses as much as digits as its factorization.

163624205243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481366116.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 163624205243 in words is "one hundred sixty-three billion, six hundred twenty-four million, two hundred five thousand, two hundred forty-three".