516687425015 has 4 divisors (see below), whose sum is σ = 620024910024. Its totient is φ = 413349940008.

The previous prime is 516687424993. The next prime is 516687425081. The reversal of 516687425015 is 510524786615.

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 516687425015 - 2²⁰ = 516686376439 is a prime.

It is a Duffinian number.

It is a congruent 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, 51668742497 + ... + 51668742506.

It is an arithmetic number, because the mean of its divisors is an integer number (155006227506).

Almost surely, 2^516687425015 is an apocalyptic number.

516687425015 is a deficient number, since it is larger than the sum of its proper divisors (103337485009).

516687425015 is a wasteful number, since it uses less digits than its factorization.

516687425015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103337485008.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 516687425015 in words is "five hundred sixteen billion, six hundred eighty-seven million, four hundred twenty-five thousand, fifteen".