505444155153212 has 24 divisors (see below), whose sum is σ = 964964485580592. Its totient is φ = 229741237555200.

The previous prime is 505444155153143. The next prime is 505444155153241. The reversal of 505444155153212 is 212351551444505.

It is a happy number.

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, 150967739 + ... + 154279442.

It is an arithmetic number, because the mean of its divisors is an integer number (40206853565858).

Almost surely, 2^{505444155153212} is an apocalyptic number.

It is an amenable number.

505444155153212 is a deficient number, since it is larger than the sum of its proper divisors (459520330427380).

505444155153212 is a wasteful number, since it uses less digits than its factorization.

505444155153212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305284829 (or 305284827 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 47.

The spelling of 505444155153212 in words is "five hundred five trillion, four hundred forty-four billion, one hundred fifty-five million, one hundred fifty-three thousand, two hundred twelve".