169345444543961 has 6 divisors (see below), whose sum is σ = 196993680387930. Its totient is φ = 145153238180496.

The previous prime is 169345444543937. The next prime is 169345444544009.

169345444543961 is nontrivially palindromic in base 10.

169345444543961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 96077733705625 + 73267710838336 = 9801925^2 + 8559656^2 .

It is not a de Polignac number, because 169345444543961 - 2³⁸ = 169070566637017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169345444543891 and 169345444543900.

It is not an unprimeable number, because it can be changed into a prime (169345444143961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1728014740196 + ... + 1728014740293.

It is an arithmetic number, because the mean of its divisors is an integer number (32832280064655).

Almost surely, 2^{169345444543961} is an apocalyptic number.

It is an amenable number.

169345444543961 is a deficient number, since it is larger than the sum of its proper divisors (27648235843969).

169345444543961 is an equidigital number, since it uses as much as digits as its factorization.

169345444543961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456029480503 (or 3456029480496 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 68.

The spelling of 169345444543961 in words is "one hundred sixty-nine trillion, three hundred forty-five billion, four hundred forty-four million, five hundred forty-three thousand, nine hundred sixty-one".