163535103521345 has 4 divisors (see below), whose sum is σ = 196242124225620. Its totient is φ = 130828082817072.

The previous prime is 163535103521299. The next prime is 163535103521347. The reversal of 163535103521345 is 543125301535361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20836047881104 + 142699055640241 = 4564652^2 + 11945671^2 .

It is a cyclic number.

It is not a de Polignac number, because 163535103521345 - 2¹² = 163535103517249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163535103521345.

It is not an unprimeable number, because it can be changed into a prime (163535103521347) 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, 16353510352130 + ... + 16353510352139.

It is an arithmetic number, because the mean of its divisors is an integer number (49060531056405).

Almost surely, 2^{163535103521345} is an apocalyptic number.

It is an amenable number.

163535103521345 is a deficient number, since it is larger than the sum of its proper divisors (32707020704275).

163535103521345 is an equidigital number, since it uses as much as digits as its factorization.

163535103521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32707020704274.

The product of its (nonzero) digits is 2430000, while the sum is 47.

The spelling of 163535103521345 in words is "one hundred sixty-three trillion, five hundred thirty-five billion, one hundred three million, five hundred twenty-one thousand, three hundred forty-five".