165534768 has 120 divisors (see below), whose sum is σ = 535222688. Its totient is φ = 46780416.

The previous prime is 165534757. The next prime is 165534769. The reversal of 165534768 is 867435561.

It is not an unprimeable number, because it can be changed into a prime (165534769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96930 + ... + 98622.

Almost surely, 2^165534768 is an apocalyptic number.

165534768 is a gapful number since it is divisible by the number (18) 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 165534768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267611344).

165534768 is an abundant number, since it is smaller than the sum of its proper divisors (369687920).

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

165534768 is a wasteful number, since it uses less digits than its factorization.

165534768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1802 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 165534768 is about 12866.0315560005. The cubic root of 165534768 is about 549.0725615021.

It can be divided in two parts, 16553 and 4768, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 165534768 in words is "one hundred sixty-five million, five hundred thirty-four thousand, seven hundred sixty-eight".