165954812 has 6 divisors (see below), whose sum is σ = 290420928. Its totient is φ = 82977404.

The previous prime is 165954793. The next prime is 165954823. The reversal of 165954812 is 218459561.

165954812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165954812.

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, 20744348 + ... + 20744355.

It is an arithmetic number, because the mean of its divisors is an integer number (48403488).

Almost surely, 2^165954812 is an apocalyptic number.

It is an amenable number.

165954812 is a deficient number, since it is larger than the sum of its proper divisors (124466116).

165954812 is a wasteful number, since it uses less digits than its factorization.

165954812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41488707 (or 41488705 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 165954812 is about 12882.3449728689. The cubic root of 165954812 is about 549.5365925817.

The spelling of 165954812 in words is "one hundred sixty-five million, nine hundred fifty-four thousand, eight hundred twelve".