165157175148 has 96 divisors (see below), whose sum is σ = 449521712640. Its totient is φ = 46215636480.

The previous prime is 165157175129. The next prime is 165157175159. The reversal of 165157175148 is 841571751561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 165157175148.

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, 2509608 + ... + 2574576.

It is an arithmetic number, because the mean of its divisors is an integer number (4682517840).

Almost surely, 2^165157175148 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 165157175148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224760856320).

165157175148 is an abundant number, since it is smaller than the sum of its proper divisors (284364537492).

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

165157175148 is a wasteful number, since it uses less digits than its factorization.

165157175148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65607 (or 65605 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 51.

The spelling of 165157175148 in words is "one hundred sixty-five billion, one hundred fifty-seven million, one hundred seventy-five thousand, one hundred forty-eight".