667480127225 has 12 divisors (see below), whose sum is σ = 836208096444. Its totient is φ = 528479109120.

The previous prime is 667480127201. The next prime is 667480127227. The reversal of 667480127225 is 522721084766.

It can be written as a sum of positive squares in 6 ways, for example, as 5660455696 + 661819671529 = 75236^2 + 813523^2 .

It is a de Polignac number, because none of the positive numbers 2^k-667480127225 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667480127227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137622344 + ... + 137627193.

It is an arithmetic number, because the mean of its divisors is an integer number (69684008037).

Almost surely, 2^667480127225 is an apocalyptic number.

It is an amenable number.

667480127225 is a deficient number, since it is larger than the sum of its proper divisors (168727969219).

667480127225 is a wasteful number, since it uses less digits than its factorization.

667480127225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275249644 (or 275249639 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 667480127225 in words is "six hundred sixty-seven billion, four hundred eighty million, one hundred twenty-seven thousand, two hundred twenty-five".