165863360 has 84 divisors (see below), whose sum is σ = 427820328. Its totient is φ = 61221888.

The previous prime is 165863359. The next prime is 165863363. The reversal of 165863360 is 63368561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165863363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52547 + ... + 55613.

Almost surely, 2^165863360 is an apocalyptic number.

165863360 is a gapful number since it is divisible by the number (10) 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 165863360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213910164).

165863360 is an abundant number, since it is smaller than the sum of its proper divisors (261956968).

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

165863360 is a wasteful number, since it uses less digits than its factorization.

165863360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110 (or 3087 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 165863360 is about 12878.7949746861. The cubic root of 165863360 is about 549.4356304499.

The spelling of 165863360 in words is "one hundred sixty-five million, eight hundred sixty-three thousand, three hundred sixty".