165349964 has 48 divisors (see below), whose sum is σ = 323555232. Its totient is φ = 73446912.

The previous prime is 165349963. The next prime is 165349969. The reversal of 165349964 is 469943561.

It is a happy number.

It is a super-2 number, since 2×165349964² = 54681221189602592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165349963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162722 + ... + 163734.

It is an arithmetic number, because the mean of its divisors is an integer number (6740734).

Almost surely, 2^165349964 is an apocalyptic number.

It is an amenable number.

165349964 is a deficient number, since it is larger than the sum of its proper divisors (158205268).

165349964 is a wasteful number, since it uses less digits than its factorization.

165349964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1144 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 165349964 is about 12858.8476933200. The cubic root of 165349964 is about 548.8681561251.

The spelling of 165349964 in words is "one hundred sixty-five million, three hundred forty-nine thousand, nine hundred sixty-four".