165055212 has 96 divisors (see below), whose sum is σ = 493785600. Its totient is φ = 46702656.

The previous prime is 165055183. The next prime is 165055213. The reversal of 165055212 is 212550561.

165055212 is a `hidden beast` number, since 1 + 650 + 5 + 5 + 2 + 1 + 2 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (165055213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81403 + ... + 83405.

It is an arithmetic number, because the mean of its divisors is an integer number (5143600).

Almost surely, 2^165055212 is an apocalyptic number.

165055212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165055212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246892800).

165055212 is an abundant number, since it is smaller than the sum of its proper divisors (328730388).

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

165055212 is a wasteful number, since it uses less digits than its factorization.

165055212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 165055212 is about 12847.3815230964. The cubic root of 165055212 is about 548.5418256207.

The spelling of 165055212 in words is "one hundred sixty-five million, fifty-five thousand, two hundred twelve".