169808728226 has 16 divisors (see below), whose sum is σ = 258921619200. Its totient is φ = 83508002208.

The previous prime is 169808728217. The next prime is 169808728283. The reversal of 169808728226 is 622827808961.

169808728226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567466 + ... + 1672293.

It is an arithmetic number, because the mean of its divisors is an integer number (16182601200).

Almost surely, 2^169808728226 is an apocalyptic number.

169808728226 is a deficient number, since it is larger than the sum of its proper divisors (89112890974).

169808728226 is a wasteful number, since it uses less digits than its factorization.

169808728226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240193.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 169808728226 in words is "one hundred sixty-nine billion, eight hundred eight million, seven hundred twenty-eight thousand, two hundred twenty-six".