513333240664 has 32 divisors (see below), whose sum is σ = 964160341200. Its totient is φ = 256224009600.

The previous prime is 513333240617. The next prime is 513333240697. The reversal of 513333240664 is 466042333315.

It is a super-2 number, since 2×513333240664² (a number of 24 digits) contains 22 as substring.

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, 28040314 + ... + 28058614.

Almost surely, 2^513333240664 is an apocalyptic number.

It is an amenable number.

513333240664 is a deficient number, since it is larger than the sum of its proper divisors (450827100536).

513333240664 is a wasteful number, since it uses less digits than its factorization.

513333240664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24163 (or 24159 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 40.

Adding to 513333240664 its reverse (466042333315), we get a palindrome (979375573979).

The spelling of 513333240664 in words is "five hundred thirteen billion, three hundred thirty-three million, two hundred forty thousand, six hundred sixty-four".