206535553211 has 8 divisors (see below), whose sum is σ = 223094880624. Its totient is φ = 190072222560.

The previous prime is 206535553193. The next prime is 206535553229. The reversal of 206535553211 is 112355535602.

206535553211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (206535553193) and next prime (206535553229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206535553211 - 2²² = 206531358907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206535555211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23994716 + ... + 24003321.

It is an arithmetic number, because the mean of its divisors is an integer number (27886860078).

Almost surely, 2^206535553211 is an apocalyptic number.

206535553211 is a deficient number, since it is larger than the sum of its proper divisors (16559327413).

206535553211 is a wasteful number, since it uses less digits than its factorization.

206535553211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47998381.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 206535553211 in words is "two hundred six billion, five hundred thirty-five million, five hundred fifty-three thousand, two hundred eleven".