2227647661 has 8 divisors (see below), whose sum is σ = 2265278400. Its totient is φ = 2190297120.

The previous prime is 2227647613. The next prime is 2227647671. The reversal of 2227647661 is 1667467222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2227647661 - 2¹¹ = 2227645613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2227647671) 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, 53985 + ... + 85846.

It is an arithmetic number, because the mean of its divisors is an integer number (283159800).

Almost surely, 2^2227647661 is an apocalyptic number.

It is an amenable number.

2227647661 is a deficient number, since it is larger than the sum of its proper divisors (37630739).

2227647661 is a wasteful number, since it uses less digits than its factorization.

2227647661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140099.

The product of its digits is 338688, while the sum is 43.

The square root of 2227647661 is about 47197.9624666150. The cubic root of 2227647661 is about 1306.0170110282.

The spelling of 2227647661 in words is "two billion, two hundred twenty-seven million, six hundred forty-seven thousand, six hundred sixty-one".