205041466641 has 32 divisors (see below), whose sum is σ = 317175667200. Its totient is φ = 116513441280.

The previous prime is 205041466633. The next prime is 205041466709. The reversal of 205041466641 is 146664140502.

It is not a de Polignac number, because 205041466641 - 2³ = 205041466633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205041466641.

It is not an unprimeable number, because it can be changed into a prime (205041466141) 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 31 ways as a sum of consecutive naturals, for example, 1624851 + ... + 1746488.

It is an arithmetic number, because the mean of its divisors is an integer number (9911739600).

Almost surely, 2^205041466641 is an apocalyptic number.

It is an amenable number.

205041466641 is a deficient number, since it is larger than the sum of its proper divisors (112134200559).

205041466641 is a wasteful number, since it uses less digits than its factorization.

205041466641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371469.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 205041466641 in words is "two hundred five billion, forty-one million, four hundred sixty-six thousand, six hundred forty-one".