165833266 has 32 divisors (see below), whose sum is σ = 276732288. Its totient is φ = 74131200.

The previous prime is 165833251. The next prime is 165833287. The reversal of 165833266 is 662338561.

It is a super-2 number, since 2×165833266² = 55001344224453512, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 126816 + ... + 128116.

It is an arithmetic number, because the mean of its divisors is an integer number (8647884).

Almost surely, 2^165833266 is an apocalyptic number.

165833266 is a deficient number, since it is larger than the sum of its proper divisors (110899022).

165833266 is a wasteful number, since it uses less digits than its factorization.

165833266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its digits is 155520, while the sum is 40.

The square root of 165833266 is about 12877.6265670348. The cubic root of 165833266 is about 549.4023988470.

The spelling of 165833266 in words is "one hundred sixty-five million, eight hundred thirty-three thousand, two hundred sixty-six".