165025316 has 6 divisors (see below), whose sum is σ = 288794310. Its totient is φ = 82512656.

The previous prime is 165025309. The next prime is 165025321. The reversal of 165025316 is 613520561.

It can be written as a sum of positive squares in only one way, i.e., 147719716 + 17305600 = 12154^2 + 4160^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20628161 + ... + 20628168.

It is an arithmetic number, because the mean of its divisors is an integer number (48132385).

Almost surely, 2^165025316 is an apocalyptic number.

It is an amenable number.

165025316 is a deficient number, since it is larger than the sum of its proper divisors (123768994).

165025316 is a wasteful number, since it uses less digits than its factorization.

165025316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41256333 (or 41256331 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 165025316 is about 12846.2179648331. The cubic root of 165025316 is about 548.5087049931.

Adding to 165025316 its reverse (613520561), we get a palindrome (778545877).

The spelling of 165025316 in words is "one hundred sixty-five million, twenty-five thousand, three hundred sixteen".