666255463200225 has 48 divisors (see below), whose sum is σ = 1224235144799040. Its totient is φ = 355249387526400.

The previous prime is 666255463200199. The next prime is 666255463200281. The reversal of 666255463200225 is 522002364552666.

It is not a de Polignac number, because 666255463200225 - 2⁷ = 666255463200097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117874744 + ... + 123397593.

It is an arithmetic number, because the mean of its divisors is an integer number (25504898849980).

Almost surely, 2^{666255463200225} is an apocalyptic number.

It is an amenable number.

666255463200225 is a deficient number, since it is larger than the sum of its proper divisors (557979681598815).

666255463200225 is a wasteful number, since it uses less digits than its factorization.

666255463200225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241276447 (or 241276436 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 666255463200225 in words is "six hundred sixty-six trillion, two hundred fifty-five billion, four hundred sixty-three million, two hundred thousand, two hundred twenty-five".