165540118 has 8 divisors (see below), whose sum is σ = 262916712. Its totient is φ = 77901216.

The previous prime is 165540113. The next prime is 165540127. The reversal of 165540118 is 811045561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 165540118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165540113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2434380 + ... + 2434447.

It is an arithmetic number, because the mean of its divisors is an integer number (32864589).

Almost surely, 2^165540118 is an apocalyptic number.

165540118 is a deficient number, since it is larger than the sum of its proper divisors (97376594).

165540118 is a wasteful number, since it uses less digits than its factorization.

165540118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868846.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 165540118 is about 12866.2394661377. The cubic root of 165540118 is about 549.0784766876.

Adding to 165540118 its reverse (811045561), we get a palindrome (976585679).

The spelling of 165540118 in words is "one hundred sixty-five million, five hundred forty thousand, one hundred eighteen".