163043040505 has 8 divisors (see below), whose sum is σ = 195656154624. Its totient is φ = 130431428400.

The previous prime is 163043040497. The next prime is 163043040541. The reversal of 163043040505 is 505040340361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163043040505 - 2³ = 163043040497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121011 + ... + 583720.

It is an arithmetic number, because the mean of its divisors is an integer number (24457019328).

Almost surely, 2^163043040505 is an apocalyptic number.

It is an amenable number.

163043040505 is a deficient number, since it is larger than the sum of its proper divisors (32613114119).

163043040505 is an equidigital number, since it uses as much as digits as its factorization.

163043040505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751007.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 163043040505 its reverse (505040340361), we get a palindrome (668083380866).

The spelling of 163043040505 in words is "one hundred sixty-three billion, forty-three million, forty thousand, five hundred five".