200020892561 has 8 divisors (see below), whose sum is σ = 228771565440. Its totient is φ = 171314284608.

The previous prime is 200020892549. The next prime is 200020892587. The reversal of 200020892561 is 165298020002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 200020892561 - 2¹⁸ = 200020630417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020892531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11006501 + ... + 11024658.

It is an arithmetic number, because the mean of its divisors is an integer number (28596445680).

Almost surely, 2^200020892561 is an apocalyptic number.

It is an amenable number.

200020892561 is a deficient number, since it is larger than the sum of its proper divisors (28750672879).

200020892561 is a wasteful number, since it uses less digits than its factorization.

200020892561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22032463.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 200020892561 in words is "two hundred billion, twenty million, eight hundred ninety-two thousand, five hundred sixty-one".