165553106 has 8 divisors (see below), whose sum is σ = 262937340. Its totient is φ = 77907328.

The previous prime is 165553097. The next prime is 165553109. The reversal of 165553106 is 601355561.

It can be written as a sum of positive squares in 2 ways, for example, as 163968025 + 1585081 = 12805^2 + 1259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165553109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2434571 + ... + 2434638.

Almost surely, 2^165553106 is an apocalyptic number.

165553106 is a deficient number, since it is larger than the sum of its proper divisors (97384234).

165553106 is a wasteful number, since it uses less digits than its factorization.

165553106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869228.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 165553106 is about 12866.7441880221. The cubic root of 165553106 is about 549.0928362375.

The spelling of 165553106 in words is "one hundred sixty-five million, five hundred fifty-three thousand, one hundred six".