513113664660 has 24 divisors (see below), whose sum is σ = 1436718261216. Its totient is φ = 136830310560.

The previous prime is 513113664653. The next prime is 513113664673. The reversal of 513113664660 is 66466311315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4275947146 + ... + 4275947265.

It is an arithmetic number, because the mean of its divisors is an integer number (59863260884).

Almost surely, 2^513113664660 is an apocalyptic number.

It is an amenable number.

513113664660 is an abundant number, since it is smaller than the sum of its proper divisors (923604596556).

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

513113664660 is a wasteful number, since it uses less digits than its factorization.

513113664660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551894423 (or 8551894421 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 513113664660 its reverse (66466311315), we get a palindrome (579579975975).

The spelling of 513113664660 in words is "five hundred thirteen billion, one hundred thirteen million, six hundred sixty-four thousand, six hundred sixty".