165430772 has 48 divisors (see below), whose sum is σ = 320191872. Its totient is φ = 74321280.

The previous prime is 165430753. The next prime is 165430799. The reversal of 165430772 is 277034561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358622 + ... + 359082.

It is an arithmetic number, because the mean of its divisors is an integer number (6670664).

Almost surely, 2^165430772 is an apocalyptic number.

It is an amenable number.

165430772 is a deficient number, since it is larger than the sum of its proper divisors (154761100).

165430772 is a wasteful number, since it uses less digits than its factorization.

165430772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 165430772 is about 12861.9894262124. The cubic root of 165430772 is about 548.9575538156.

The spelling of 165430772 in words is "one hundred sixty-five million, four hundred thirty thousand, seven hundred seventy-two".