165823844 has 24 divisors (see below), whose sum is σ = 301056000. Its totient is φ = 79859520.

The previous prime is 165823829. The next prime is 165823873. The reversal of 165823844 is 448328561.

165823844 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

165823844 is strictly pandigital in base 9.

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, 6557 + ... + 19355.

It is an arithmetic number, because the mean of its divisors is an integer number (12544000).

Almost surely, 2^165823844 is an apocalyptic number.

It is an amenable number.

165823844 is a deficient number, since it is larger than the sum of its proper divisors (135232156).

165823844 is a wasteful number, since it uses less digits than its factorization.

165823844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923 (or 12921 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 165823844 is about 12877.2607335567. The cubic root of 165823844 is about 549.3919936821.

The spelling of 165823844 in words is "one hundred sixty-five million, eight hundred twenty-three thousand, eight hundred forty-four".