165525656 has 16 divisors (see below), whose sum is σ = 313209600. Its totient is φ = 82003104.

The previous prime is 165525631. The next prime is 165525667. The reversal of 165525656 is 656525561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94040 + ... + 95783.

It is an arithmetic number, because the mean of its divisors is an integer number (19575600).

Almost surely, 2^165525656 is an apocalyptic number.

It is an amenable number.

165525656 is a deficient number, since it is larger than the sum of its proper divisors (147683944).

165525656 is a wasteful number, since it uses less digits than its factorization.

165525656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189938 (or 189934 counting only the distinct ones).

The product of its digits is 270000, while the sum is 41.

The square root of 165525656 is about 12865.6774403838. The cubic root of 165525656 is about 549.0624865975.

The spelling of 165525656 in words is "one hundred sixty-five million, five hundred twenty-five thousand, six hundred fifty-six".