200611330661 has 12 divisors (see below), whose sum is σ = 234536896800. Its totient is φ = 171088477560.

The previous prime is 200611330649. The next prime is 200611330693. The reversal of 200611330661 is 166033116002.

It is a happy number.

It is not a de Polignac number, because 200611330661 - 2³⁰ = 199537588837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200611330631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10276955 + ... + 10296456.

It is an arithmetic number, because the mean of its divisors is an integer number (19544741400).

Almost surely, 2^200611330661 is an apocalyptic number.

It is an amenable number.

200611330661 is a deficient number, since it is larger than the sum of its proper divisors (33925566139).

200611330661 is a wasteful number, since it uses less digits than its factorization.

200611330661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20573624 (or 20573617 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 200611330661 its reverse (166033116002), we get a palindrome (366644446663).

The spelling of 200611330661 in words is "two hundred billion, six hundred eleven million, three hundred thirty thousand, six hundred sixty-one".