666376227 has 48 divisors (see below), whose sum is σ = 1146337920. Its totient is φ = 382579200.

The previous prime is 666376211. The next prime is 666376229. The reversal of 666376227 is 722673666.

It is not a de Polignac number, because 666376227 - 2⁴ = 666376211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666376229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44227 + ... + 57347.

It is an arithmetic number, because the mean of its divisors is an integer number (23882040).

Almost surely, 2^666376227 is an apocalyptic number.

666376227 is a deficient number, since it is larger than the sum of its proper divisors (479961693).

666376227 is a wasteful number, since it uses less digits than its factorization.

666376227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13166 (or 13154 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 666376227 is about 25814.2640220480. The cubic root of 666376227 is about 873.4535850996.

The spelling of 666376227 in words is "six hundred sixty-six million, three hundred seventy-six thousand, two hundred twenty-seven".