165573952 has 14 divisors (see below), whose sum is σ = 328560938. Its totient is φ = 82786944.

The previous prime is 165573937. The next prime is 165573959. The reversal of 165573952 is 259375561.

165573952 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163430656 + 2143296 = 12784^2 + 1464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165573899 and 165573908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165573959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293483 + ... + 1293610.

Almost surely, 2^165573952 is an apocalyptic number.

It is an amenable number.

165573952 is a deficient number, since it is larger than the sum of its proper divisors (162986986).

165573952 is an equidigital number, since it uses as much as digits as its factorization.

165573952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587105 (or 2587095 counting only the distinct ones).

The product of its digits is 283500, while the sum is 43.

The square root of 165573952 is about 12867.5542353627. The cubic root of 165573952 is about 549.1158820325.

The spelling of 165573952 in words is "one hundred sixty-five million, five hundred seventy-three thousand, nine hundred fifty-two".