205052156211 has 8 divisors (see below), whose sum is σ = 312460428544. Its totient is φ = 117172660680.

The previous prime is 205052156201. The next prime is 205052156251. The reversal of 205052156211 is 112651250502.

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

It is not a de Polignac number, because 205052156211 - 2⁶ = 205052156147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205052156201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4882194175 + ... + 4882194216.

It is an arithmetic number, because the mean of its divisors is an integer number (39057553568).

Almost surely, 2^205052156211 is an apocalyptic number.

205052156211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

205052156211 is a deficient number, since it is larger than the sum of its proper divisors (107408272333).

205052156211 is an equidigital number, since it uses as much as digits as its factorization.

205052156211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764388401.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 205052156211 in words is "two hundred five billion, fifty-two million, one hundred fifty-six thousand, two hundred eleven".