165216502 has 16 divisors (see below), whose sum is σ = 271553472. Its totient is φ = 74765320.

The previous prime is 165216497. The next prime is 165216517. The reversal of 165216502 is 205612561.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11548 + ... + 21535.

It is an arithmetic number, because the mean of its divisors is an integer number (16972092).

Almost surely, 2^165216502 is an apocalyptic number.

165216502 is a deficient number, since it is larger than the sum of its proper divisors (106336970).

165216502 is a wasteful number, since it uses less digits than its factorization.

165216502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33323.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 165216502 is about 12853.6571449529. The cubic root of 165216502 is about 548.7204436458.

The spelling of 165216502 in words is "one hundred sixty-five million, two hundred sixteen thousand, five hundred two".