163042646103605 has 8 divisors (see below), whose sum is σ = 195653925167064. Its totient is φ = 130432283654400.

The previous prime is 163042646103577. The next prime is 163042646103607. The reversal of 163042646103605 is 506301646240361.

It can be written as a sum of positive squares in 4 ways, for example, as 6458642800996 + 156584003302609 = 2541386^2 + 12513353^2 .

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

It is not a de Polignac number, because 163042646103605 - 2³⁶ = 162973926626869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163042646103605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163042646103607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228762176 + ... + 229473785.

It is an arithmetic number, because the mean of its divisors is an integer number (24456740645883).

Almost surely, 2^{163042646103605} is an apocalyptic number.

It is an amenable number.

163042646103605 is a deficient number, since it is larger than the sum of its proper divisors (32611279063459).

163042646103605 is an equidigital number, since it uses as much as digits as its factorization.

163042646103605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458307127.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 163042646103605 in words is "one hundred sixty-three trillion, forty-two billion, six hundred forty-six million, one hundred three thousand, six hundred five".