165982976 has 18 divisors (see below), whose sum is σ = 331318092. Its totient is φ = 82991360.

The previous prime is 165982969. The next prime is 165982981. The reversal of 165982976 is 679289561.

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, 323930 + ... + 324441.

Almost surely, 2^165982976 is an apocalyptic number.

165982976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165982976 is a deficient number, since it is larger than the sum of its proper divisors (165335116).

165982976 is an frugal number, since it uses more digits than its factorization.

165982976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648387 (or 648373 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The square root of 165982976 is about 12883.4380504584. The cubic root of 165982976 is about 549.5676778973.

The spelling of 165982976 in words is "one hundred sixty-five million, nine hundred eighty-two thousand, nine hundred seventy-six".