206054440263 has 24 divisors (see below), whose sum is σ = 341363901216. Its totient is φ = 117326361600.

The previous prime is 206054440253. The next prime is 206054440301. The reversal of 206054440263 is 362044450602.

206054440263 is a `hidden beast` number, since 2 + 0 + 605 + 4 + 4 + 40 + 2 + 6 + 3 = 666.

It is not a de Polignac number, because 206054440263 - 2¹⁴ = 206054423879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206054440213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5802058 + ... + 5837463.

It is an arithmetic number, because the mean of its divisors is an integer number (14223495884).

Almost surely, 2^206054440263 is an apocalyptic number.

206054440263 is a deficient number, since it is larger than the sum of its proper divisors (135309460953).

206054440263 is a wasteful number, since it uses less digits than its factorization.

206054440263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11639815 (or 11639812 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 206054440263 its reverse (362044450602), we get a palindrome (568098890865).

The spelling of 206054440263 in words is "two hundred six billion, fifty-four million, four hundred forty thousand, two hundred sixty-three".