6510027661656 has 128 divisors (see below), whose sum is σ = 17276633088000. Its totient is φ = 2038419395712.

The previous prime is 6510027661567. The next prime is 6510027661667. The reversal of 6510027661656 is 6561667200156.

It is a junction number, because it is equal to n+sod(n) for n = 6510027661599 and 6510027661608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101835255 + ... + 101899161.

It is an arithmetic number, because the mean of its divisors is an integer number (134973696000).

Almost surely, 2^{6510027661656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6510027661656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8638316544000).

6510027661656 is an abundant number, since it is smaller than the sum of its proper divisors (10766605426344).

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

6510027661656 is a wasteful number, since it uses less digits than its factorization.

6510027661656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65821 (or 65817 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 6510027661656 in words is "six trillion, five hundred ten billion, twenty-seven million, six hundred sixty-one thousand, six hundred fifty-six".