204113310256540 has 24 divisors (see below), whose sum is σ = 428669015090400. Its totient is φ = 81639407235648.

The previous prime is 204113310256489. The next prime is 204113310256547. The reversal of 204113310256540 is 45652013311402.

204113310256540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204113310256540² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204113310256540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204113310256547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369521307 + ... + 370073266.

It is an arithmetic number, because the mean of its divisors is an integer number (17861208962100).

Almost surely, 2^{204113310256540} is an apocalyptic number.

204113310256540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204113310256540 is an abundant number, since it is smaller than the sum of its proper divisors (224555704833860).

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

204113310256540 is a wasteful number, since it uses less digits than its factorization.

204113310256540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739608381 (or 739608379 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 204113310256540 its reverse (45652013311402), we get a palindrome (249765323567942).

The spelling of 204113310256540 in words is "two hundred four trillion, one hundred thirteen billion, three hundred ten million, two hundred fifty-six thousand, five hundred forty".