206223663 has 16 divisors (see below), whose sum is σ = 289745280. Its totient is φ = 130107744.

The previous prime is 206223653. The next prime is 206223671. The reversal of 206223663 is 366322602.

It is not a de Polignac number, because 206223663 - 2⁵ = 206223631 is a prime.

It is a super-2 number, since 2×206223663² = 85056398362275138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206223663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206223623) 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, 90820 + ... + 93062.

It is an arithmetic number, because the mean of its divisors is an integer number (18109080).

Almost surely, 2^206223663 is an apocalyptic number.

206223663 is a deficient number, since it is larger than the sum of its proper divisors (83521617).

206223663 is a wasteful number, since it uses less digits than its factorization.

206223663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 206223663 is about 14360.4896504263. The cubic root of 206223663 is about 590.8077254514.

The spelling of 206223663 in words is "two hundred six million, two hundred twenty-three thousand, six hundred sixty-three".