169444448897 has 8 divisors (see below), whose sum is σ = 173395659360. Its totient is φ = 165493722240.

The previous prime is 169444448881. The next prime is 169444448969. The reversal of 169444448897 is 798844444961.

169444448897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 169444448897 - 2⁴ = 169444448881 is a prime.

It is a super-2 number, since 2×169444448897² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169444448837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643322 + ... + 867612.

It is an arithmetic number, because the mean of its divisors is an integer number (21674457420).

Almost surely, 2^169444448897 is an apocalyptic number.

It is an amenable number.

169444448897 is a deficient number, since it is larger than the sum of its proper divisors (3951210463).

169444448897 is a wasteful number, since it uses less digits than its factorization.

169444448897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241903.

The product of its digits is 222953472, while the sum is 68.

The spelling of 169444448897 in words is "one hundred sixty-nine billion, four hundred forty-four million, four hundred forty-eight thousand, eight hundred ninety-seven".