205320330140 has 24 divisors (see below), whose sum is σ = 432644284800. Its totient is φ = 81847828928.

The previous prime is 205320330139. The next prime is 205320330169. The reversal of 205320330140 is 41033023502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17512940 + ... + 17524659.

It is an arithmetic number, because the mean of its divisors is an integer number (18026845200).

Almost surely, 2^205320330140 is an apocalyptic number.

205320330140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205320330140 is an abundant number, since it is smaller than the sum of its proper divisors (227323954660).

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

205320330140 is a wasteful number, since it uses less digits than its factorization.

205320330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35037901 (or 35037899 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 205320330140 its reverse (41033023502), we get a palindrome (246353353642).

The spelling of 205320330140 in words is "two hundred five billion, three hundred twenty million, three hundred thirty thousand, one hundred forty".