165072512 has 32 divisors (see below), whose sum is σ = 358754400. Its totient is φ = 75032320.

The previous prime is 165072493. The next prime is 165072521. The reversal of 165072512 is 215270561.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57212 + ... + 60027.

It is an arithmetic number, because the mean of its divisors is an integer number (11211075).

Almost surely, 2^165072512 is an apocalyptic number.

It is an amenable number.

165072512 is an abundant number, since it is smaller than the sum of its proper divisors (193681888).

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

165072512 is a wasteful number, since it uses less digits than its factorization.

165072512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117264 (or 117252 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 165072512 is about 12848.0547944037. The cubic root of 165072512 is about 548.5609897981.

The spelling of 165072512 in words is "one hundred sixty-five million, seventy-two thousand, five hundred twelve".