206263043685441 has 12 divisors (see below), whose sum is σ = 297944554690068. Its totient is φ = 137504520185184.

The previous prime is 206263043685437. The next prime is 206263043685443. The reversal of 206263043685441 is 144586340362602.

206263043685441 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 6 + 30 + 4 + 3 + 68 + 544 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3929374530225 + 202333669155216 = 1982265^2 + 14224404^2 .

It is not a de Polignac number, because 206263043685441 - 2² = 206263043685437 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206263043685443) 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, 347654230 + ... + 348247023.

It is an arithmetic number, because the mean of its divisors is an integer number (24828712890839).

Almost surely, 2^{206263043685441} is an apocalyptic number.

It is an amenable number.

206263043685441 is a deficient number, since it is larger than the sum of its proper divisors (91681511004627).

206263043685441 is a wasteful number, since it uses less digits than its factorization.

206263043685441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695934192 (or 695934189 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 54.

The spelling of 206263043685441 in words is "two hundred six trillion, two hundred sixty-three billion, forty-three million, six hundred eighty-five thousand, four hundred forty-one".