513366121604 has 24 divisors (see below), whose sum is σ = 1027417272000. Its totient is φ = 219867260256.

The previous prime is 513366121549. The next prime is 513366121627. The reversal of 513366121604 is 406121663315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6073607 + ... + 6157550.

It is an arithmetic number, because the mean of its divisors is an integer number (42809053000).

Almost surely, 2^513366121604 is an apocalyptic number.

It is an amenable number.

513366121604 is an abundant number, since it is smaller than the sum of its proper divisors (514051150396).

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

513366121604 is a wasteful number, since it uses less digits than its factorization.

513366121604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12232667 (or 12232665 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 513366121604 its reverse (406121663315), we get a palindrome (919487784919).

The spelling of 513366121604 in words is "five hundred thirteen billion, three hundred sixty-six million, one hundred twenty-one thousand, six hundred four".