6516516230556 has 24 divisors (see below), whose sum is σ = 15205912588944. Its totient is φ = 2172070926720.

The previous prime is 6516516230551. The next prime is 6516516230563. The reversal of 6516516230556 is 6550326156156.

It is a junction number, because it is equal to n+sod(n) for n = 6516516230499 and 6516516230508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516516230551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12375105 + ... + 12890936.

It is an arithmetic number, because the mean of its divisors is an integer number (633579691206).

Almost surely, 2^{6516516230556} is an apocalyptic number.

It is an amenable number.

6516516230556 is an abundant number, since it is smaller than the sum of its proper divisors (8689396358388).

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

6516516230556 is a wasteful number, since it uses less digits than its factorization.

6516516230556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25287541 (or 25287539 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 6516516230556 in words is "six trillion, five hundred sixteen billion, five hundred sixteen million, two hundred thirty thousand, five hundred fifty-six".