169289355136 has 128 divisors (see below), whose sum is σ = 374839228800. Its totient is φ = 75506534400.

The previous prime is 169289355133. The next prime is 169289355187. The reversal of 169289355136 is 631553982961.

169289355136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169289355133) 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 15 ways as a sum of consecutive naturals, for example, 54909051 + ... + 54912133.

It is an arithmetic number, because the mean of its divisors is an integer number (2928431475).

Almost surely, 2^169289355136 is an apocalyptic number.

169289355136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169289355136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187419614400).

169289355136 is an abundant number, since it is smaller than the sum of its proper divisors (205549873664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169289355136 is a wasteful number, since it uses less digits than its factorization.

169289355136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828 (or 3816 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 58.

It can be divided in two parts, 169289 and 355136, that added together give a palindrome (524425).

The spelling of 169289355136 in words is "one hundred sixty-nine billion, two hundred eighty-nine million, three hundred fifty-five thousand, one hundred thirty-six".