505541342450440 has 32 divisors (see below), whose sum is σ = 1140059063880000. Its totient is φ = 201755907048384.

The previous prime is 505541342450399. The next prime is 505541342450489. The reversal of 505541342450440 is 44054243145505.

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, 14394667590 + ... + 14394702709.

It is an arithmetic number, because the mean of its divisors is an integer number (35626845746250).

Almost surely, 2^{505541342450440} is an apocalyptic number.

It is an amenable number.

505541342450440 is an abundant number, since it is smaller than the sum of its proper divisors (634517721429560).

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

505541342450440 is a wasteful number, since it uses less digits than its factorization.

505541342450440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28789370749 (or 28789370745 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 46.

Adding to 505541342450440 its reverse (44054243145505), we get a palindrome (549595585595945).

The spelling of 505541342450440 in words is "five hundred five trillion, five hundred forty-one billion, three hundred forty-two million, four hundred fifty thousand, four hundred forty".