6651206202227 has 4 divisors (see below), whose sum is σ = 6653126854320. Its totient is φ = 6649285550136.

The previous prime is 6651206202181. The next prime is 6651206202247. The reversal of 6651206202227 is 7222026021566.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6651206202227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6651206202247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960320852 + ... + 960327777.

It is an arithmetic number, because the mean of its divisors is an integer number (1663281713580).

Almost surely, 2^{6651206202227} is an apocalyptic number.

6651206202227 is a deficient number, since it is larger than the sum of its proper divisors (1920652093).

6651206202227 is a wasteful number, since it uses less digits than its factorization.

6651206202227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920652092.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 6651206202227 in words is "six trillion, six hundred fifty-one billion, two hundred six million, two hundred two thousand, two hundred twenty-seven".