513513236560 has 40 divisors (see below), whose sum is σ = 1194270990336. Its totient is φ = 205344612480.

The previous prime is 513513236543. The next prime is 513513236581. The reversal of 513513236560 is 65632315315.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675184 + ... + 1217743.

Almost surely, 2^513513236560 is an apocalyptic number.

It is an amenable number.

513513236560 is an abundant number, since it is smaller than the sum of its proper divisors (680757753776).

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

513513236560 is a wasteful number, since it uses less digits than its factorization.

513513236560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896331 (or 1896325 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 40.

The spelling of 513513236560 in words is "five hundred thirteen billion, five hundred thirteen million, two hundred thirty-six thousand, five hundred sixty".