686520135116 has 12 divisors (see below), whose sum is σ = 1201427081400. Its totient is φ = 343255254720.

The previous prime is 686520135113. The next prime is 686520135151. The reversal of 686520135116 is 611531025686.

It is a super-3 number, since 3×686520135116³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (686520135113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872141 + ... + 1460708.

It is an arithmetic number, because the mean of its divisors is an integer number (100118923450).

Almost surely, 2^686520135116 is an apocalyptic number.

It is an amenable number.

686520135116 is a deficient number, since it is larger than the sum of its proper divisors (514906946284).

686520135116 is a wasteful number, since it uses less digits than its factorization.

686520135116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406424 (or 2406422 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 686520135116 in words is "six hundred eighty-six billion, five hundred twenty million, one hundred thirty-five thousand, one hundred sixteen".