165111260 has 12 divisors (see below), whose sum is σ = 346733688. Its totient is φ = 66044496.

The previous prime is 165111257. The next prime is 165111263. The reversal of 165111260 is 62111561.

It is an interprime number because it is at equal distance from previous prime (165111257) and next prime (165111263).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165111263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4127762 + ... + 4127801.

It is an arithmetic number, because the mean of its divisors is an integer number (28894474).

Almost surely, 2^165111260 is an apocalyptic number.

165111260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165111260 is an abundant number, since it is smaller than the sum of its proper divisors (181622428).

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

165111260 is a wasteful number, since it uses less digits than its factorization.

165111260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255572 (or 8255570 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 165111260 is about 12849.5626384714. The cubic root of 165111260 is about 548.6039082667.

It can be divided in two parts, 16511 and 1260, that added together give a palindrome (17771).

The spelling of 165111260 in words is "one hundred sixty-five million, one hundred eleven thousand, two hundred sixty".