169139616 has 48 divisors (see below), whose sum is σ = 447519744. Its totient is φ = 55931904.

The previous prime is 169139587. The next prime is 169139623. The reversal of 169139616 is 616931961.

169139616 is digitally balanced in base 3, 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 (48).

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, 5256 + ... + 19128.

It is an arithmetic number, because the mean of its divisors is an integer number (9323328).

Almost surely, 2^169139616 is an apocalyptic number.

169139616 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 169139616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223759872).

169139616 is an abundant number, since it is smaller than the sum of its proper divisors (278380128).

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

169139616 is a wasteful number, since it uses less digits than its factorization.

169139616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14013 (or 14005 counting only the distinct ones).

The product of its digits is 52488, while the sum is 42.

The square root of 169139616 is about 13005.3687375637. The cubic root of 169139616 is about 553.0296890517.

The spelling of 169139616 in words is "one hundred sixty-nine million, one hundred thirty-nine thousand, six hundred sixteen".