6205535515209 has 16 divisors (see below), whose sum is σ = 8409930105600. Its totient is φ = 4069471650816.

The previous prime is 6205535515187. The next prime is 6205535515211. The reversal of 6205535515209 is 9025155355026.

It is not a de Polignac number, because 6205535515209 - 2¹¹ = 6205535513161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6205535515229) 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 15 ways as a sum of consecutive naturals, for example, 48604824 + ... + 48732329.

It is an arithmetic number, because the mean of its divisors is an integer number (525620631600).

Almost surely, 2^{6205535515209} is an apocalyptic number.

It is an amenable number.

6205535515209 is a deficient number, since it is larger than the sum of its proper divisors (2204394590391).

6205535515209 is a wasteful number, since it uses less digits than its factorization.

6205535515209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97337504.

The product of its (nonzero) digits is 2025000, while the sum is 48.

The spelling of 6205535515209 in words is "six trillion, two hundred five billion, five hundred thirty-five million, five hundred fifteen thousand, two hundred nine".