165213016 has 32 divisors (see below), whose sum is σ = 318081600. Its totient is φ = 80421120.

The previous prime is 165213011. The next prime is 165213017. The reversal of 165213016 is 610312561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165213011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44346 + ... + 47926.

It is an arithmetic number, because the mean of its divisors is an integer number (9940050).

Almost surely, 2^165213016 is an apocalyptic number.

It is an amenable number.

165213016 is a deficient number, since it is larger than the sum of its proper divisors (152868584).

165213016 is a wasteful number, since it uses less digits than its factorization.

165213016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739 (or 3735 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 165213016 is about 12853.5215408074. The cubic root of 165213016 is about 548.7165843604.

Adding to 165213016 its reverse (610312561), we get a palindrome (775525577).

The spelling of 165213016 in words is "one hundred sixty-five million, two hundred thirteen thousand, sixteen".