163195100545 has 4 divisors (see below), whose sum is σ = 195834120660. Its totient is φ = 130556080432.

The previous prime is 163195100539. The next prime is 163195100647. The reversal of 163195100545 is 545001591361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545001591361 = 167 ⋅3263482583.

It can be written as a sum of positive squares in 2 ways, for example, as 82259402481 + 80935698064 = 286809^2 + 284492^2 .

It is a cyclic number.

It is not a de Polignac number, because 163195100545 - 2⁷ = 163195100417 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 163195100498 and 163195100507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16319510050 + ... + 16319510059.

It is an arithmetic number, because the mean of its divisors is an integer number (48958530165).

Almost surely, 2^163195100545 is an apocalyptic number.

It is an amenable number.

163195100545 is a deficient number, since it is larger than the sum of its proper divisors (32639020115).

163195100545 is an equidigital number, since it uses as much as digits as its factorization.

163195100545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32639020114.

The product of its (nonzero) digits is 81000, while the sum is 40.

The spelling of 163195100545 in words is "one hundred sixty-three billion, one hundred ninety-five million, one hundred thousand, five hundred forty-five".