6655565056506 has 16 divisors (see below), whose sum is σ = 13412741794848. Its totient is φ = 2201586405200.

The previous prime is 6655565056493. The next prime is 6655565056507. The reversal of 6655565056506 is 6056505655566.

It is a self number, because there is not a number n which added to its sum of digits gives 6655565056506.

It is not an unprimeable number, because it can be changed into a prime (6655565056507) 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, 4233819225 + ... + 4233820796.

It is an arithmetic number, because the mean of its divisors is an integer number (838296362178).

Almost surely, 2^{6655565056506} is an apocalyptic number.

6655565056506 is an abundant number, since it is smaller than the sum of its proper divisors (6757176738342).

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

6655565056506 is a wasteful number, since it uses less digits than its factorization.

6655565056506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467640157.

The product of its (nonzero) digits is 121500000, while the sum is 60.

The spelling of 6655565056506 in words is "six trillion, six hundred fifty-five billion, five hundred sixty-five million, fifty-six thousand, five hundred six".