165941760 has 320 divisors, whose sum is σ = 593961984. Its totient is φ = 39321600.

The previous prime is 165941753. The next prime is 165941779. The reversal of 165941760 is 67149561.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

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, 4047340 + ... + 4047380.

Almost surely, 2^165941760 is an apocalyptic number.

165941760 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 165941760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296980992).

165941760 is an abundant number, since it is smaller than the sum of its proper divisors (428020224).

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

165941760 is a wasteful number, since it uses less digits than its factorization.

165941760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 165941760 is about 12881.8383781198. The cubic root of 165941760 is about 549.5221855682.

The spelling of 165941760 in words is "one hundred sixty-five million, nine hundred forty-one thousand, seven hundred sixty".