6506655066 has 12 divisors (see below), whose sum is σ = 14097752682. Its totient is φ = 2168885016.

The previous prime is 6506655019. The next prime is 6506655073. The reversal of 6506655066 is 6605566056.

It can be written as a sum of positive squares in only one way, i.e., 4892303025 + 1614352041 = 69945^2 + 40179^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180740401 + ... + 180740436.

Almost surely, 2^6506655066 is an apocalyptic number.

6506655066 is an abundant number, since it is smaller than the sum of its proper divisors (7591097616).

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

6506655066 is a wasteful number, since it uses less digits than its factorization.

6506655066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361480845 (or 361480842 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The square root of 6506655066 is about 80663.8398912425. The cubic root of 6506655066 is about 1866.8922870072.

The spelling of 6506655066 in words is "six billion, five hundred six million, six hundred fifty-five thousand, sixty-six".