165803072 has 28 divisors (see below), whose sum is σ = 331622400. Its totient is φ = 82244736.

The previous prime is 165803069. The next prime is 165803083. The reversal of 165803072 is 270308561.

It is a happy number.

165803072 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072 + ... + 18327.

Almost surely, 2^165803072 is an apocalyptic number.

It is an amenable number.

165803072 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165803072 is a wasteful number, since it uses less digits than its factorization.

165803072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20538 (or 20528 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 165803072 is about 12876.4541703064. The cubic root of 165803072 is about 549.3690527773.

The spelling of 165803072 in words is "one hundred sixty-five million, eight hundred three thousand, seventy-two".