165982386 has 8 divisors (see below), whose sum is σ = 331964784. Its totient is φ = 55327460.

The previous prime is 165982357. The next prime is 165982387. The reversal of 165982386 is 683289561.

It is a happy number.

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

165982386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (165982387) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13831860 + ... + 13831871.

It is an arithmetic number, because the mean of its divisors is an integer number (41495598).

Almost surely, 2^165982386 is an apocalyptic number.

165982386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165982386 is a wasteful number, since it uses less digits than its factorization.

165982386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27663736.

The product of its digits is 622080, while the sum is 48.

The square root of 165982386 is about 12883.4151528234. The cubic root of 165982386 is about 549.5670267356.

The spelling of 165982386 in words is "one hundred sixty-five million, nine hundred eighty-two thousand, three hundred eighty-six".