165976 has 8 divisors (see below), whose sum is σ = 311220. Its totient is φ = 82984.

The previous prime is 165961. The next prime is 165983. The reversal of 165976 is 679561.

165976 = T₅₈ + T₅₉ + ... + T₁₀₅.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10366 + ... + 10381.

2¹⁶⁵⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

165976 is a deficient number, since it is larger than the sum of its proper divisors (145244).

165976 is a wasteful number, since it uses less digits than its factorization.

165976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20753 (or 20749 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 165976 is about 407.4015218430. The cubic root of 165976 is about 54.9559978638.

The spelling of 165976 in words is "one hundred sixty-five thousand, nine hundred seventy-six".