513204661616 has 40 divisors (see below), whose sum is σ = 1049400453120. Its totient is φ = 242462172096.

The previous prime is 513204661609. The next prime is 513204661639. The reversal of 513204661616 is 616166402315.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2087450 + ... + 2320313.

It is an arithmetic number, because the mean of its divisors is an integer number (26235011328).

Almost surely, 2^513204661616 is an apocalyptic number.

It is an amenable number.

513204661616 is an abundant number, since it is smaller than the sum of its proper divisors (536195791504).

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

513204661616 is a wasteful number, since it uses less digits than its factorization.

513204661616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408173 (or 4408167 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 513204661616 in words is "five hundred thirteen billion, two hundred four million, six hundred sixty-one thousand, six hundred sixteen".