165546256 has 10 divisors (see below), whose sum is σ = 320745902. Its totient is φ = 82773120.

The previous prime is 165546247. The next prime is 165546263. The reversal of 165546256 is 652645561.

It can be written as a sum of positive squares in only one way, i.e., 106502400 + 59043856 = 10320^2 + 7684^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5173305 + ... + 5173336.

Almost surely, 2^165546256 is an apocalyptic number.

165546256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165546256 is a deficient number, since it is larger than the sum of its proper divisors (155199646).

165546256 is a wasteful number, since it uses less digits than its factorization.

165546256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10346649 (or 10346643 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 165546256 is about 12866.4779951625. The cubic root of 165546256 is about 549.0852629620.

The spelling of 165546256 in words is "one hundred sixty-five million, five hundred forty-six thousand, two hundred fifty-six".