513231241616 has 20 divisors (see below), whose sum is σ = 1004636930892. Its totient is φ = 253970098176.

The previous prime is 513231241591. The next prime is 513231241631. The reversal of 513231241616 is 616142132315.

It can be written as a sum of positive squares in 2 ways, for example, as 409083043216 + 104148198400 = 639596^2 + 322720^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165343565 + ... + 165346668.

Almost surely, 2^513231241616 is an apocalyptic number.

It is an amenable number.

513231241616 is a deficient number, since it is larger than the sum of its proper divisors (491405689276).

513231241616 is a wasteful number, since it uses less digits than its factorization.

513231241616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330690338 (or 330690332 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The spelling of 513231241616 in words is "five hundred thirteen billion, two hundred thirty-one million, two hundred forty-one thousand, six hundred sixteen".