200203448481 has 81 divisors (see below), whose sum is σ = 310042162521. Its totient is φ = 124481665728.

The previous prime is 200203448443. The next prime is 200203448537. The reversal of 200203448481 is 184844302002.

The square root of 200203448481 is 447441.

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

200203448481 is a `hidden beast` number, since 2 + 0 + 0 + 203 + 448 + 4 + 8 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 42607152225 + 157596296256 = 206415^2 + 396984^2 .

It is not a de Polignac number, because 200203448481 - 2¹⁷ = 200203317409 is a prime.

It is a super-2 number, since 2×200203448481² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200203448681) by changing a digit.

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 80 ways as a sum of consecutive naturals, for example, 1440312510 + ... + 1440312648.

Almost surely, 2^200203448481 is an apocalyptic number.

200203448481 is the 447441-st square number.

200203448481 is the 223721-st centered octagonal number.

It is an amenable number.

200203448481 is a deficient number, since it is larger than the sum of its proper divisors (109838714040).

200203448481 is an equidigital number, since it uses as much as digits as its factorization.

200203448481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

Multiplying 200203448481 by its sum of digits (36), we get a square (7207324145316 = 2684646²).

The spelling of 200203448481 in words is "two hundred billion, two hundred three million, four hundred forty-eight thousand, four hundred eighty-one".