205611469707 has 32 divisors (see below), whose sum is σ = 320748736000. Its totient is φ = 117109377504.

The previous prime is 205611469673. The next prime is 205611469717. The reversal of 205611469707 is 707964116502.

It is not a de Polignac number, because 205611469707 - 2²⁰ = 205610421131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205611469717) 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, 9532 + ... + 641337.

It is an arithmetic number, because the mean of its divisors is an integer number (10023398000).

Almost surely, 2^205611469707 is an apocalyptic number.

205611469707 is a deficient number, since it is larger than the sum of its proper divisors (115137266293).

205611469707 is an equidigital number, since it uses as much as digits as its factorization.

205611469707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651200 (or 651186 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 205611469707 in words is "two hundred five billion, six hundred eleven million, four hundred sixty-nine thousand, seven hundred seven".