581016685252 has 24 divisors (see below), whose sum is σ = 1036712678400. Its totient is φ = 284838776736.

The previous prime is 581016685243. The next prime is 581016685259. The reversal of 581016685252 is 252586610185.

It is a junction number, because it is equal to n+sod(n) for n = 581016685196 and 581016685205.

It is not an unprimeable number, because it can be changed into a prime (581016685259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123627 + ... + 3304402.

It is an arithmetic number, because the mean of its divisors is an integer number (43196361600).

Almost surely, 2^581016685252 is an apocalyptic number.

It is an amenable number.

581016685252 is a deficient number, since it is larger than the sum of its proper divisors (455695993148).

581016685252 is a wasteful number, since it uses less digits than its factorization.

581016685252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428475 (or 6428473 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 49.

The spelling of 581016685252 in words is "five hundred eighty-one billion, sixteen million, six hundred eighty-five thousand, two hundred fifty-two".