666310610125 has 32 divisors (see below), whose sum is σ = 837199883520. Its totient is φ = 529433236800.

The previous prime is 666310610123. The next prime is 666310610137. The reversal of 666310610125 is 521016013666.

It is not a de Polignac number, because 666310610125 - 2¹ = 666310610123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666310610123) 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 31 ways as a sum of consecutive naturals, for example, 60419862 + ... + 60430888.

It is an arithmetic number, because the mean of its divisors is an integer number (26162496360).

Almost surely, 2^666310610125 is an apocalyptic number.

It is an amenable number.

666310610125 is a deficient number, since it is larger than the sum of its proper divisors (170889273395).

666310610125 is a wasteful number, since it uses less digits than its factorization.

666310610125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14278 (or 14268 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 666310610125 in words is "six hundred sixty-six billion, three hundred ten million, six hundred ten thousand, one hundred twenty-five".