169089252020 has 96 divisors (see below), whose sum is σ = 391997491200. Its totient is φ = 60876255744.

The previous prime is 169089251999. The next prime is 169089252037. The reversal of 169089252020 is 20252980961.

169089252020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3261461 + ... + 3312899.

It is an arithmetic number, because the mean of its divisors is an integer number (4083307200).

Almost surely, 2^169089252020 is an apocalyptic number.

169089252020 is a gapful number since it is divisible by the number (10) 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 169089252020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195998745600).

169089252020 is an abundant number, since it is smaller than the sum of its proper divisors (222908239180).

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

169089252020 is a wasteful number, since it uses less digits than its factorization.

169089252020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51777 (or 51775 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 169089252020 in words is "one hundred sixty-nine billion, eighty-nine million, two hundred fifty-two thousand, twenty".