206855814263 has 16 divisors (see below), whose sum is σ = 239003322624. Its totient is φ = 175362855360.

The previous prime is 206855814211. The next prime is 206855814281. The reversal of 206855814263 is 362418558602.

It is not a de Polignac number, because 206855814263 - 2¹⁴ = 206855797879 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 (206855804263) 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, 238328 + ... + 685938.

It is an arithmetic number, because the mean of its divisors is an integer number (14937707664).

Almost surely, 2^206855814263 is an apocalyptic number.

206855814263 is a deficient number, since it is larger than the sum of its proper divisors (32147508361).

206855814263 is a wasteful number, since it uses less digits than its factorization.

206855814263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448342.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 206855814263 in words is "two hundred six billion, eight hundred fifty-five million, eight hundred fourteen thousand, two hundred sixty-three".