201010566 has 16 divisors (see below), whose sum is σ = 412887024. Its totient is φ = 65192544.

The previous prime is 201010553. The next prime is 201010583. The reversal of 201010566 is 665010102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452505 + ... + 452948.

It is an arithmetic number, because the mean of its divisors is an integer number (25805439).

Almost surely, 2^201010566 is an apocalyptic number.

201010566 is an abundant number, since it is smaller than the sum of its proper divisors (211876458).

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

201010566 is a wasteful number, since it uses less digits than its factorization.

201010566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905495.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 201010566 is about 14177.8195079497. The cubic root of 201010566 is about 585.7868642901.

Adding to 201010566 its reverse (665010102), we get a palindrome (866020668).

The spelling of 201010566 in words is "two hundred one million, ten thousand, five hundred sixty-six".