521162676648 has 48 divisors (see below), whose sum is σ = 1413838764000. Its totient is φ = 173430859680.

The previous prime is 521162676641. The next prime is 521162676679. The reversal of 521162676648 is 846676261125.

521162676648 is a `hidden beast` number, since 5 + 2 + 1 + 1 + 626 + 7 + 6 + 6 + 4 + 8 = 666.

It is a super-2 number, since 2×521162676648² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521162676594 and 521162676603.

It is not an unprimeable number, because it can be changed into a prime (521162676641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5998918 + ... + 6085173.

It is an arithmetic number, because the mean of its divisors is an integer number (29454974250).

Almost surely, 2^521162676648 is an apocalyptic number.

It is an amenable number.

521162676648 is an abundant number, since it is smaller than the sum of its proper divisors (892676087352).

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

521162676648 is a wasteful number, since it uses less digits than its factorization.

521162676648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084702 (or 12084695 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 521162676648 in words is "five hundred twenty-one billion, one hundred sixty-two million, six hundred seventy-six thousand, six hundred forty-eight".