513316433611601 has 4 divisors (see below), whose sum is σ = 513317451247104. Its totient is φ = 513315415976100.

The previous prime is 513316433611573. The next prime is 513316433611661. The reversal of 513316433611601 is 106116334613315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513316433611601 is a prime.

It is a super-2 number, since 2×513316433611601² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (513316433611661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508060745 + ... + 509070086.

It is an arithmetic number, because the mean of its divisors is an integer number (128329362811776).

Almost surely, 2^{513316433611601} is an apocalyptic number.

It is an amenable number.

513316433611601 is a deficient number, since it is larger than the sum of its proper divisors (1017635503).

513316433611601 is a wasteful number, since it uses less digits than its factorization.

513316433611601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017635502.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 513316433611601 in words is "five hundred thirteen trillion, three hundred sixteen billion, four hundred thirty-three million, six hundred eleven thousand, six hundred one".