205148600418 has 32 divisors (see below), whose sum is σ = 428159296512. Its totient is φ = 65406171600.

The previous prime is 205148600417. The next prime is 205148600429. The reversal of 205148600418 is 814006841502.

It is not an unprimeable number, because it can be changed into a prime (205148600417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3994563 + ... + 4045593.

It is an arithmetic number, because the mean of its divisors is an integer number (13379978016).

Almost surely, 2^205148600418 is an apocalyptic number.

205148600418 is an abundant number, since it is smaller than the sum of its proper divisors (223010696094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205148600418 is a wasteful number, since it uses less digits than its factorization.

205148600418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80190.

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 205148600418 in words is "two hundred five billion, one hundred forty-eight million, six hundred thousand, four hundred eighteen".