169243988916 has 96 divisors (see below), whose sum is σ = 417432960000. Its totient is φ = 53221459968.

The previous prime is 169243988873. The next prime is 169243988933. The reversal of 169243988916 is 619889342961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99613035 + ... + 99614733.

It is an arithmetic number, because the mean of its divisors is an integer number (4348260000).

Almost surely, 2^169243988916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169243988916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208716480000).

169243988916 is an abundant number, since it is smaller than the sum of its proper divisors (248188971084).

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

169243988916 is a wasteful number, since it uses less digits than its factorization.

169243988916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3299 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 66.

The spelling of 169243988916 in words is "one hundred sixty-nine billion, two hundred forty-three million, nine hundred eighty-eight thousand, nine hundred sixteen".