665227027 has 16 divisors (see below), whose sum is σ = 702550080. Its totient is φ = 628992000.

The previous prime is 665227007. The next prime is 665227061. The reversal of 665227027 is 720722566.

It is a cyclic number.

It is not a de Polignac number, because 665227027 - 2²⁷ = 531009299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665227007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318627 + ... + 320707.

It is an arithmetic number, because the mean of its divisors is an integer number (43909380).

Almost surely, 2^665227027 is an apocalyptic number.

665227027 is a deficient number, since it is larger than the sum of its proper divisors (37323053).

665227027 is a wasteful number, since it uses less digits than its factorization.

665227027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 665227027 is about 25791.9954055517. The cubic root of 665227027 is about 872.9511910105.

The spelling of 665227027 in words is "six hundred sixty-five million, two hundred twenty-seven thousand, twenty-seven".