201522066 has 8 divisors (see below), whose sum is σ = 403044144. Its totient is φ = 67174020.

The previous prime is 201522049. The next prime is 201522089. The reversal of 201522066 is 660225102.

It is a sphenic number, since it is the product of 3 distinct primes.

201522066 is an admirable number.

It is a super-2 number, since 2×201522066² = 81222286169816712, which contains 22 as substring.

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, 16793500 + ... + 16793511.

It is an arithmetic number, because the mean of its divisors is an integer number (50380518).

Almost surely, 2^201522066 is an apocalyptic number.

201522066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

201522066 is a wasteful number, since it uses less digits than its factorization.

201522066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33587016.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 201522066 is about 14195.8467870008. The cubic root of 201522066 is about 586.2833161191.

Adding to 201522066 its reverse (660225102), we get a palindrome (861747168).

The spelling of 201522066 in words is "two hundred one million, five hundred twenty-two thousand, sixty-six".