165810160 has 40 divisors (see below), whose sum is σ = 387542160. Its totient is φ = 65974272.

The previous prime is 165810157. The next prime is 165810167. The reversal of 165810160 is 61018561.

165810160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165810167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10071 + ... + 20809.

It is an arithmetic number, because the mean of its divisors is an integer number (9688554).

Almost surely, 2^165810160 is an apocalyptic number.

165810160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165810160 is an abundant number, since it is smaller than the sum of its proper divisors (221732000).

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

165810160 is a wasteful number, since it uses less digits than its factorization.

165810160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10945 (or 10939 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 165810160 is about 12876.7293984148. The cubic root of 165810160 is about 549.3768810849.

The spelling of 165810160 in words is "one hundred sixty-five million, eight hundred ten thousand, one hundred sixty".