200880550809 has 9 divisors (see below), whose sum is σ = 290162737813. Its totient is φ = 133919470812.

The previous prime is 200880550807. The next prime is 200880550817. The reversal of 200880550809 is 908055088002.

The square root of 200880550809 is 448197.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 200880550809 - 2¹ = 200880550807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200880550807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1269892 + ... + 1419290.

Almost surely, 2^200880550809 is an apocalyptic number.

200880550809 is the 448197-th square number.

200880550809 is the 224099-th centered octagonal number.

It is an amenable number.

200880550809 is a deficient number, since it is larger than the sum of its proper divisors (89282187004).

200880550809 is an frugal number, since it uses more digits than its factorization.

200880550809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298804 (or 149402 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

It can be divided in two parts, 200880 and 550809, that added together give a square (751689 = 867²).

The spelling of 200880550809 in words is "two hundred billion, eight hundred eighty million, five hundred fifty thousand, eight hundred nine".