513253544165 has 8 divisors (see below), whose sum is σ = 621660368160. Its totient is φ = 406765425232.

The previous prime is 513253544143. The next prime is 513253544173. The reversal of 513253544165 is 561445352315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513253544165 - 2¹⁴ = 513253527781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479675675 + ... + 479676744.

It is an arithmetic number, because the mean of its divisors is an integer number (77707546020).

Almost surely, 2^513253544165 is an apocalyptic number.

It is an amenable number.

513253544165 is a deficient number, since it is larger than the sum of its proper divisors (108406823995).

513253544165 is a wasteful number, since it uses less digits than its factorization.

513253544165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959352531.

The product of its digits is 1080000, while the sum is 44.

The spelling of 513253544165 in words is "five hundred thirteen billion, two hundred fifty-three million, five hundred forty-four thousand, one hundred sixty-five".