165680234 has 8 divisors (see below), whose sum is σ = 248669760. Its totient is φ = 82790316.

The previous prime is 165680233. The next prime is 165680237. The reversal of 165680234 is 432086561.

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

It is a junction number, because it is equal to n+sod(n) for n = 165680194 and 165680203.

It is not an unprimeable number, because it can be changed into a prime (165680231) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 20594 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (31083720).

Almost surely, 2^165680234 is an apocalyptic number.

165680234 is a deficient number, since it is larger than the sum of its proper divisors (82989526).

165680234 is a wasteful number, since it uses less digits than its factorization.

165680234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49804.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 165680234 is about 12871.6834174866. The cubic root of 165680234 is about 549.2333494855.

The spelling of 165680234 in words is "one hundred sixty-five million, six hundred eighty thousand, two hundred thirty-four".