513312666305315 has 4 divisors (see below), whose sum is σ = 615975199566384. Its totient is φ = 410650133044248.

The previous prime is 513312666305287. The next prime is 513312666305323. The reversal of 513312666305315 is 513503666213315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513312666305315 - 2¹² = 513312666301219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51331266630527 + ... + 51331266630536.

It is an arithmetic number, because the mean of its divisors is an integer number (153993799891596).

Almost surely, 2^{513312666305315} is an apocalyptic number.

513312666305315 is a deficient number, since it is larger than the sum of its proper divisors (102662533261069).

513312666305315 is a wasteful number, since it uses less digits than its factorization.

513312666305315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102662533261068.

The product of its (nonzero) digits is 4374000, while the sum is 50.

The spelling of 513312666305315 in words is "five hundred thirteen trillion, three hundred twelve billion, six hundred sixty-six million, three hundred five thousand, three hundred fifteen".