666082477305 has 36 divisors (see below), whose sum is σ = 1343039775012. Its totient is φ = 304494845760.

The previous prime is 666082477297. The next prime is 666082477309. The reversal of 666082477305 is 503774280666.

It can be written as a sum of positive squares in 2 ways, for example, as 281677517289 + 384404960016 = 530733^2 + 620004^2 .

It is not a de Polignac number, because 666082477305 - 2³ = 666082477297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (666082477309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 151036906 + ... + 151041315.

It is an arithmetic number, because the mean of its divisors is an integer number (37306660417).

Almost surely, 2^666082477305 is an apocalyptic number.

It is an amenable number.

666082477305 is an abundant number, since it is smaller than the sum of its proper divisors (676957297707).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666082477305 is a wasteful number, since it uses less digits than its factorization.

666082477305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302078246 (or 302078236 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 666082477305 in words is "six hundred sixty-six billion, eighty-two million, four hundred seventy-seven thousand, three hundred five".