165955110 has 32 divisors (see below), whose sum is σ = 412028640. Its totient is φ = 42728448.

The previous prime is 165955093. The next prime is 165955151. The reversal of 165955110 is 11559561.

It is a super-2 number, since 2×165955110² = 55082197070224200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94507 + ... + 96246.

It is an arithmetic number, because the mean of its divisors is an integer number (12875895).

Almost surely, 2^165955110 is an apocalyptic number.

165955110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165955110 is an abundant number, since it is smaller than the sum of its proper divisors (246073530).

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

165955110 is a wasteful number, since it uses less digits than its factorization.

165955110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190792.

The product of its (nonzero) digits is 6750, while the sum is 33.

The square root of 165955110 is about 12882.3565390809. The cubic root of 165955110 is about 549.5369215102.

It can be divided in two parts, 1659551 and 10, that added together give a palindrome (1659561).

The spelling of 165955110 in words is "one hundred sixty-five million, nine hundred fifty-five thousand, one hundred ten".