3220565065427 has 4 divisors (see below), whose sum is σ = 3220652482296. Its totient is φ = 3220477648560.

The previous prime is 3220565065423. The next prime is 3220565065447. The reversal of 3220565065427 is 7245605650223.

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

It is a cyclic number.

It is not a de Polignac number, because 3220565065427 - 2² = 3220565065423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220565065423) 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, 43653149 + ... + 43726862.

It is an arithmetic number, because the mean of its divisors is an integer number (805163120574).

Almost surely, 2^{3220565065427} is an apocalyptic number.

3220565065427 is a deficient number, since it is larger than the sum of its proper divisors (87416869).

3220565065427 is an equidigital number, since it uses as much as digits as its factorization.

3220565065427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87416868.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 3220565065427 in words is "three trillion, two hundred twenty billion, five hundred sixty-five million, sixty-five thousand, four hundred twenty-seven".