201066 has 32 divisors (see below), whose sum is σ = 442368. Its totient is φ = 60720.

The previous prime is 201049. The next prime is 201073. The reversal of 201066 is 660102.

201066 = T₆₈ + T₆₉ + ... + T₁₁₄.

201066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

201066 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4255 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (13824).

2²⁰¹⁰⁶⁶ is an apocalyptic number.

201066 is an abundant number, since it is smaller than the sum of its proper divisors (241302).

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

201066 is a wasteful number, since it uses less digits than its factorization.

201066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 201066 is about 448.4038358444. The cubic root of 201066 is about 58.5840708101.

Adding to 201066 its reverse (660102), we get a palindrome (861168).

The spelling of 201066 in words is "two hundred one thousand, sixty-six".