581616712 has 16 divisors (see below), whose sum is σ = 1096559100. Its totient is φ = 289200960.

The previous prime is 581616683. The next prime is 581616713. The reversal of 581616712 is 217616185.

It can be written as a sum of positive squares in 2 ways, for example, as 445800996 + 135815716 = 21114^2 + 11654^2 .

It is not an unprimeable number, because it can be changed into a prime (581616713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199387 + ... + 202282.

Almost surely, 2^581616712 is an apocalyptic number.

It is an amenable number.

581616712 is a deficient number, since it is larger than the sum of its proper divisors (514942388).

581616712 is a wasteful number, since it uses less digits than its factorization.

581616712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401856 (or 401852 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 581616712 is about 24116.7309559152. The cubic root of 581616712 is about 834.7292377510.

The spelling of 581616712 in words is "five hundred eighty-one million, six hundred sixteen thousand, seven hundred twelve".