165163304 has 8 divisors (see below), whose sum is σ = 309681210. Its totient is φ = 82581648.

The previous prime is 165163291. The next prime is 165163307. The reversal of 165163304 is 403361561.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 165122500 + 40804 = 12850^2 + 202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (165163307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10322699 + ... + 10322714.

Almost surely, 2^165163304 is an apocalyptic number.

It is an amenable number.

165163304 is a deficient number, since it is larger than the sum of its proper divisors (144517906).

165163304 is a wasteful number, since it uses less digits than its factorization.

165163304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645419 (or 20645415 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 165163304 is about 12851.5876062065. The cubic root of 165163304 is about 548.6615432265.

The spelling of 165163304 in words is "one hundred sixty-five million, one hundred sixty-three thousand, three hundred four".