165056512 has 52 divisors (see below), whose sum is σ = 336158640. Its totient is φ = 81010688.

The previous prime is 165056509. The next prime is 165056557. The reversal of 165056512 is 215650561.

It is a super-2 number, since 2×165056512² = 54487304307212288, which contains 22 as substring.

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, 241323 + ... + 242005.

Almost surely, 2^165056512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165056512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168079320).

165056512 is an abundant number, since it is smaller than the sum of its proper divisors (171102128).

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

165056512 is an frugal number, since it uses more digits than its factorization.

165056512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 165056512 is about 12847.4321169641. The cubic root of 165056512 is about 548.5432657500.

The spelling of 165056512 in words is "one hundred sixty-five million, fifty-six thousand, five hundred twelve".