200730205861 has 16 divisors (see below), whose sum is σ = 210758215680. Its totient is φ = 190925529840.

The previous prime is 200730205829. The next prime is 200730205877. The reversal of 200730205861 is 168502037002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200730205861 - 2⁵ = 200730205829 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 (200730200861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15991990 + ... + 16004536.

It is an arithmetic number, because the mean of its divisors is an integer number (13172388480).

Almost surely, 2^200730205861 is an apocalyptic number.

It is an amenable number.

200730205861 is a deficient number, since it is larger than the sum of its proper divisors (10028009819).

200730205861 is a wasteful number, since it uses less digits than its factorization.

200730205861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21384.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 200730205861 in words is "two hundred billion, seven hundred thirty million, two hundred five thousand, eight hundred sixty-one".