165943222 has 12 divisors (see below), whose sum is σ = 264419100. Its totient is φ = 78090656.

The previous prime is 165943199. The next prime is 165943231. The reversal of 165943222 is 222349561.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142972 + ... + 144127.

It is an arithmetic number, because the mean of its divisors is an integer number (22034925).

Almost surely, 2^165943222 is an apocalyptic number.

165943222 is a deficient number, since it is larger than the sum of its proper divisors (98475878).

165943222 is a wasteful number, since it uses less digits than its factorization.

165943222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287135 (or 287118 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 165943222 is about 12881.8951245537. The cubic root of 165943222 is about 549.5237993856.

The spelling of 165943222 in words is "one hundred sixty-five million, nine hundred forty-three thousand, two hundred twenty-two".