165890982 has 16 divisors (see below), whose sum is σ = 342484992. Its totient is φ = 53513160.

The previous prime is 165890969. The next prime is 165891029. The reversal of 165890982 is 289098561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445758 + ... + 446129.

It is an arithmetic number, because the mean of its divisors is an integer number (21405312).

Almost surely, 2^165890982 is an apocalyptic number.

165890982 is an abundant number, since it is smaller than the sum of its proper divisors (176594010).

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

165890982 is a wasteful number, since it uses less digits than its factorization.

165890982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891923.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 165890982 is about 12879.8673129811. The cubic root of 165890982 is about 549.4661287842.

The spelling of 165890982 in words is "one hundred sixty-five million, eight hundred ninety thousand, nine hundred eighty-two".