6627206566 has 16 divisors (see below), whose sum is σ = 9986674320. Its totient is φ = 3298348800.

The previous prime is 6627206563. The next prime is 6627206633. The reversal of 6627206566 is 6656027266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6627206561) 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, 409150 + ... + 425038.

It is an arithmetic number, because the mean of its divisors is an integer number (624167145).

Almost surely, 2^6627206566 is an apocalyptic number.

6627206566 is a deficient number, since it is larger than the sum of its proper divisors (3359467754).

6627206566 is a wasteful number, since it uses less digits than its factorization.

6627206566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16839.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The square root of 6627206566 is about 81407.6566792092. The cubic root of 6627206566 is about 1878.3513694978.

The spelling of 6627206566 in words is "six billion, six hundred twenty-seven million, two hundred six thousand, five hundred sixty-six".