6520685117148 has 36 divisors (see below), whose sum is σ = 16482925138680. Its totient is φ = 2173550865696.

The previous prime is 6520685117131. The next prime is 6520685117159. The reversal of 6520685117148 is 8417115860256.

6520685117148 is a `hidden beast` number, since 6 + 5 + 20 + 68 + 511 + 7 + 1 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 6520685117094 and 6520685117103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10513918 + ... + 11116826.

It is an arithmetic number, because the mean of its divisors is an integer number (457859031630).

Almost surely, 2^{6520685117148} is an apocalyptic number.

It is an amenable number.

6520685117148 is an abundant number, since it is smaller than the sum of its proper divisors (9962240021532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6520685117148 is a wasteful number, since it uses less digits than its factorization.

6520685117148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903346 (or 903341 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 6520685117148 in words is "six trillion, five hundred twenty billion, six hundred eighty-five million, one hundred seventeen thousand, one hundred forty-eight".