513332165544 has 64 divisors (see below), whose sum is σ = 1437834594240. Its totient is φ = 151351004160.

The previous prime is 513332165537. The next prime is 513332165569. The reversal of 513332165544 is 445561233315.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 513332165496 and 513332165505.

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 15 ways as a sum of consecutive naturals, for example, 26266449 + ... + 26285984.

It is an arithmetic number, because the mean of its divisors is an integer number (22466165535).

Almost surely, 2^513332165544 is an apocalyptic number.

It is an amenable number.

513332165544 is an abundant number, since it is smaller than the sum of its proper divisors (924502428696).

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

513332165544 is a wasteful number, since it uses less digits than its factorization.

513332165544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52552490 (or 52552486 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

Adding to 513332165544 its reverse (445561233315), we get a palindrome (958893398859).

It can be divided in two parts, 513332 and 165544, that added together give a palindrome (678876).

The spelling of 513332165544 in words is "five hundred thirteen billion, three hundred thirty-two million, one hundred sixty-five thousand, five hundred forty-four".