165433616 has 10 divisors (see below), whose sum is σ = 320527662. Its totient is φ = 82716800.

The previous prime is 165433591. The next prime is 165433643. The reversal of 165433616 is 616334561.

It can be written as a sum of positive squares in only one way, i.e., 143904016 + 21529600 = 11996^2 + 4640^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5169785 + ... + 5169816.

Almost surely, 2^165433616 is an apocalyptic number.

165433616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165433616 is a deficient number, since it is larger than the sum of its proper divisors (155094046).

165433616 is a wasteful number, since it uses less digits than its factorization.

165433616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10339609 (or 10339603 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 165433616 is about 12862.0999840617. The cubic root of 165433616 is about 548.9606995954.

The spelling of 165433616 in words is "one hundred sixty-five million, four hundred thirty-three thousand, six hundred sixteen".