169158047916 has 144 divisors (see below), whose sum is σ = 468181280000. Its totient is φ = 47219483520.

The previous prime is 169158047911. The next prime is 169158047939. The reversal of 169158047916 is 619740851961.

It is a happy number.

It is a super-2 number, since 2×169158047916² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169158047911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9410145 + ... + 9428103.

Almost surely, 2^169158047916 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 169158047916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234090640000).

169158047916 is an abundant number, since it is smaller than the sum of its proper divisors (299023232084).

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

169158047916 is a wasteful number, since it uses less digits than its factorization.

169158047916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500 (or 18487 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 169158047916 in words is "one hundred sixty-nine billion, one hundred fifty-eight million, forty-seven thousand, nine hundred sixteen".