165111532 has 12 divisors (see below), whose sum is σ = 291503016. Its totient is φ = 81824960.

The previous prime is 165111523. The next prime is 165111533. The reversal of 165111532 is 235111561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 165111497 and 165111506.

It is not an unprimeable number, because it can be changed into a prime (165111533) 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, 182194 + ... + 183097.

It is an arithmetic number, because the mean of its divisors is an integer number (24291918).

Almost surely, 2^165111532 is an apocalyptic number.

It is an amenable number.

165111532 is a deficient number, since it is larger than the sum of its proper divisors (126391484).

165111532 is a wasteful number, since it uses less digits than its factorization.

165111532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365408 (or 365406 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 165111532 is about 12849.5732224849. The cubic root of 165111532 is about 548.6042095185.

The spelling of 165111532 in words is "one hundred sixty-five million, one hundred eleven thousand, five hundred thirty-two".