165242157888 has 112 divisors (see below), whose sum is σ = 444997880640. Its totient is φ = 54103425024.

The previous prime is 165242157887. The next prime is 165242157893. The reversal of 165242157888 is 888751242561.

It is a super-3 number, since 3×165242157888³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165242157887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4522798 + ... + 4559186.

Almost surely, 2^165242157888 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 165242157888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222498940320).

165242157888 is an abundant number, since it is smaller than the sum of its proper divisors (279755722752).

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

165242157888 is a wasteful number, since it uses less digits than its factorization.

165242157888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36824 (or 36814 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 57.

The spelling of 165242157888 in words is "one hundred sixty-five billion, two hundred forty-two million, one hundred fifty-seven thousand, eight hundred eighty-eight".